Can green financial development promote renewable energyinvestment efficiency? A consideration of bank credit

Cangreennancialdevelopmentpromoterenewableenergy investmentefciency?Aconsiderationofbankcredit

 và thông tin bổ ích giúp sinh viên tham khảo, ôn luyện và phục vụ nhu cầu học tập của mình cụ thể là có định hướng, ôn tập, nắm vững kiến thức môn học và làm bài tốt trong những bài kiểm tra, bài tiểu luận, bài tập kết thúc học phần, từ đó học tập tốt và có kết quả cao cũng như có thể vận dụng tốt những kiến thức mình đã học.

Can green nancial development promote renewable energy
investment efciency? A consideration of bank credit
Lingyun He
a
, Rongyan Liu
a
, Zhangqi Zhong
b
,
*
, Deqing Wang
a
, Yufei Xia
c
a
School of Management, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, China
b
School of Economics, Zhejiang University of Finance and Economics, Hangzhou, 310018, China
c
Business School, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
a r t i c l e i n f o
Article history:
Received 18 September 2018
Received in revised form
14 March 2019
Accepted 14 May 2019
Available online 17 May 2019
Keywords:
Green nance
Bank credit
Investment ef ciency
Renewable energy investment
a b s t r a c t
Taking 141 listed renewable energy enterprises in China as a sample, the Richardson model is adopted to
measure their investment efciency in this paper. On this basis, an intermediary effect model of panel
data is constructed to empirically analyze the intermediary effect of green nancial development on
renewable energy investment efciency through bank loans, short-term loans, and long-term loans. We
nd that Chinas green nancial development has a negative impact on bank loan issuance in general,
and inhibits the improvement of renewable energy investment efciency to a certain extent, with an
effect degree of 0.0017. Besides, the short-term loan has few intermediate effect on investment efciency,
while there is no intermediary effect of long-term loans. Moreover, as for the over-investment renewable
energy enterprises, intermediary effect of bank loans exists. Green nancial development can inhibit
over-investment in renewable energy by reducing bank credit issuance; for renewable energy companies
of under-investment, on the contrary, it aggravates the under-investment to a certain extent. This paper
suggests that the government should both construct and consummate the green nancial system
through policies and regulation. Financial institutions should actively produce innovative green nancial
products and support the development of renewable energy enterprises and the renewable energy
enterprises should strengthen their internal management and develop nancing channels.
© 2019 Elsevier Ltd. All rights reserved.
1. Introduction
In October 2015, the Chinese government put forward the
concept of Green Development and advocated development of a
low-carbon economy. In practical terms, under the growth model
that the economy is driven by the consumption of energy resources,
developing a renewable energy industry is an important route for
promoting the transformation of energy provision and industrial
structure and developing a sustainable economy. The 13th Five -
Year Plan for Renewable Energy Development of China proposes to
adhere to a clean, low-carbon, safe, and efcient development
policy and promote the development of the renewable energy in-
dustry. According to The 2018 Global Renewable Energy Invest-
ment Trend Report, Chinas renewable energy investment reached
126.6 billion US dollars in 2017, showing an increase of 31% over
2016, and China has become the largest renewable energy investor
in the world. Chinas renewable energy investment is growing
rapidly, and some issues must be addressed. On the one hand, the
government needs to pay more attention to the quality and bene ts
of growth. On the other hand, the development of a renewable
energy industry and the promotion of economic and industrial
structure transformation must, ultimately, be implemented at the
level of the microcosmic subject, speci cally, at the level of enter-
prises. Investment efciency is an important issue in respect of
enterprises. According to the nancing investment chain,e
nancing is one of the important factors affecting investment ef-
ciency. The 2017 Statistical Data Report on the Scale of Social
Finance, released by the Peoples Bank of China, shows that loans
granted by Chinese nancial institutions accounted for 69.6% of the
social nancing scale in 2017, which indicates that bank credit is the
most important source of external nancing for Chinese enter-
prises. Therefore, bank credit will have an important impact on
enterprise investment through the chain.nancing-investment
Further, at the G20 summit in 2016, the concept of Green
Finance received extensive attention from all of society. In practice,
as early as the 1990s, China began to lay out plans for green
* Corresponding author.
E-mail address: zzhongz@zufe.edu.cn (Z. Zhong).
Contents lists available at ScienceDirect
Renewable Energy
jo urn al h o me p ag e : w ww. els evi er. com /lo cat e/r ene ne
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0960-1481/© 2019 Elsevier Ltd. All rights reserved.
Renewable Energy 143 (2019) 974 984e
nancial development. In 1995, the Peoples Bank of China issued a
notice on implementing credit policies and strengthening envi-
ronmental protection, which was the rst attempt to develop green
nance in China. Since then, the State Environmental Protection
Administration, the Peoples Bank of China, and other agencies have
issued several policies and measures. In 2015, The Overall Plan for
Ecological Civilization System Reform was released, and the Chi-
nese government proposed establishing of a green nancial system
for the rst time. In 2016, the Peoples Bank of China etc. issued
Guidance on Building a Green Financial System, indicating that
green nance had entered a stage of rapid development. There are
various aspects to this. On the one hand, green nancial develop-
ment can improve the macro-nancial environment and impel
micro-economic entities to pay more attention to environmental
benets. On the other hand, green nancial development has
changed the traditional nancing investmente channel and has
had a complicated impact on enterprise investment. In view of this,
based on the general relationship between nancial development
and economic development, this paper intends to study the
renewable energy investment efciency from the perspective of
microcosmic subject, and then analyze how green nance in-
uences renewable energy investment efciency through bank
credit channels.
From the research perspective, existing research mainly focuses
on the relationship between nancing channels and investment
efciency. As to the enterprise nancing channels, it encompasses
three aspects: internal nancing, debt nancing, and equity
nancing. As to internal nancing. Deng and Zhang [1] think that
internal nancing can reduce the investment efciency of enter-
prises. Xiong et al. [2] show that free cash ow is positively related
to enterprise investment. Yang and Hu [3]; Xiao [4]; Zhang et al. [ ];5
and Chen et al. [6] indicate that excessive free cash ow of enter-
prises will lead to over-investment, while shortage of free cash ow
will lead to under-investment. As to debt nancing, Jensen [7]
points out that debt has a camera governance function, which can
reduce the agency cost between shareholders and managers and
improve investment efciency. And banks holding companies with
higher investment efciency can obtain more debt nancing [8]. On
the one hand, debt nancing can increase enterprises cash ow
and alleviate under-investment [9]. On the other hand, debt
nancing has a controlling effect on over-investment [10e12].
However, Zhang et al. [13] and Zhang et al. [14,15] nd that, due to
the existence of soft budget constraints, the overall effect of debt
management is uncertain. Specically, the governance effect of
business credit is signicant, which can effectively improve enter-
prise investment efciency, but the governance effect of bank loans
and corporate bonds varies according to the research industry. The
effect of short-term creditors rights governance is signi cant,
while the governance effect of long-term creditors rights is insig-
nicant [1,14e17]. As to equity nancing, the low-cost nature of
equity nancing can increase the free cash ow of enterprises,
improve under-investment, and aggravate over-investment, which
decreases investment efciency [18,19].
As far as nancial development, nancing channels, and in-
vestment efciency are concerned, the existing research analyzes
that nancial development can affect investment efciency by
nancing channels, which indicates that nancial development can
promote investment efciency by easing corporate nancing con-
straints and reducing agency costs [3,20 26e ]. Mallic and Yang [ ]27
believe that the investment efciency of enterprises is relatively
low for countries with a low nancial development level. Kong et al.
[28] point out that nancial development has a crowding out
effect on enterprise investment, but a high level of nancial
development will improve the investment efciency of enterprises.
Zhai and Gu [29] come to the opposite conclusion. The main reason
for Zhai and Gus conclusion is that the existence of soft budget
constraints weakens the easing effect of nancial development on
the nancing constraints of state-owned enterprises, which brings
about over-investment and efciency losses. Further, Shen et al.
[30] and Li et al. [31] think that, for state-owned enterprises, the
nancial development level is negatively related to investment
efciency. For non-state-owned enterprises, the improvement of
nancial development level can alleviate nancing constraints and
improve investment efciency. It is worth mentioning that other
scholars indicate that nancial development plays an adjusting role
in the relationship between enterprise nancing and investment
efciency. Some empirical research shows that, the higher the
nancial development level, the stronger the negative relationship
between bank loans and over-investment; that is, nancial devel-
opment has a positive adjustment effect on the relationship be-
tween bank loans and investment efciency [11].
Overall, scholars have conducted studies on nancial develop-
ment and the relationship between enterprise nancing and in-
vestment efciency. Most of them have afrmed the inuence of
nancial development and different nancing channels on enter-
prise investment efciency, but conclusions are inconsistent. Under
the background of sustainable economic development, green
nance plays an important role in affecting renewable energy in-
vestment. How about the green nance development in China? Is
the effect of green nance on renewable energy investment posi-
tive or negative? Through what channels? Will nancing policy
preferences improve renewable energy investment ef ciency?
What should the government, nancial institutions, and enter-
prises do in order to improve the positive promotion effect of green
nancial development on renewable energy investment ef ciency?
In view of these problems, this paper tries to do some in-depth
research from the above aspects. We try to further clarify and
quantitatively analyze the transmission channels among nancial
development, enterprise nancing, and investment efciency from
green development perspective, and nally put forward some
suggestions on how to develop green nance and then promote
renewable energy development. The second part of this paper ex-
plains the theoretical relationship between green nancial devel-
opment, bank credit, and renewable energy investment. The third
part presents variables, the sample, and basic model construction.
The fourth part describes the measurement of green nancial
development level and renewable energy investment efciency.
The fth part analyzes the direct and indirect effects of green
nancial development, bank credit, and renewable energy invest-
ment efciency. The sixth part concludes and suggests.
2. Theoretical relationships among green nancial
development, bank credit, and renewable energy investment
ef ciency
There is no uniform denition of green nance in academia.
Referring to the existing research [32e34], this paper holds that
green nance is a nancial form that can effectively allocate
nancial resources and guide the capital ow to low-energy con-
sumption, low-pollution, and high-efciency industries through
green nancial products such as green credit, green securities,
green insurance, green investment and carbon nance whose
objective is to promote the optimization of economic structures
and realize the win-win situation between environment and
economy. In terms of renewable energy investment, there are two
kinds of denition. The rst is enterprises investment in the
renewable energy eld. For example, Xu and Bai [35] believe that
renewable energy investment is enterprises investment in
renewable energy in a given year. The second is the investment of
renewable energy enterprises. Zhang et al. [14,15] point out that
L. He et al. / Renewable Energy 143 (2019) 974e984 975
renewable energy investment is the cash used by renewable energy
enterprises to construct xed assets, intangible assets, and other
long-term assets. He et al. [36] have a similar denition. In general,
the current research mainly denes renewable energy investment
from the perspective of investment subjects. In summary, this pa-
per denes renewable energy investment efciency as the in-
vestment efciency of renewable energy enterprises from the
perspective of microeconomic agencies.
The Pecking Order Theory of Myers [37] indicates that, with the
existence of asymmetric information and agency problems, man-
agers nancing preferences are endogenous nancing, debt
nancing, and equity nancing. As far as the economic reality of
China is concerned, bank credit accounts for the largest proportion
in debt nancing. Therefore, based on the perspective of the
nancing investmente chain, this paper attempts to study the
in ciency.uence of bank credit on renewable energy investment ef
Moreover, due to the existence of agency conicts, asymmetric
information, nancing constraints, and soft budget constraints,
enterprises investment will deviate from the optimal investment
amount, which will result in low investment efciency, while debt
has contingent governance function [7,38]. As the main source of
corporate debt nancing, bank credit can, through four internal
mechanismsddelivering important information, reducing agency
costs, easing nancing constraints, and hardening budget con-
straintsdalleviate investment shortage and control over-
investment and thus improve renewable energy investment
ef ciency.
Dealing with these mechanisms in order: First, convey impor-
tant information. Information asymmetry is one of the important
reasons for the low investment efciency of enterprises. Compared
with general creditors, bank institutions have information advan-
tages and can obtain important private information of enterprises.
Therefore, bank credit issuance plays an important signaling role
for external investors. Second, reduce agency costs. The principal-
agent problem mainly stems from the separation of enterprises
ownership and control power. Due to the interest conicts between
managers and shareholders, managers deliberately invest in low-
income projects to avoid returning free cash ow to shareholders,
which leads to over-investment. However, bank credit has a con-
trolling function, which can constrain adverse selection and moral
hazard behaviors of managers to a certain extent. Third, ease
nancing constraints. Due to the information asymmetry between
the investing and nancing parties and the blocking of nancing
channels in the nancial market, most enterprises are facing
nancing constraints [39 40, ]. Bank credit provides enterprises with
investment funds, easing nancing constraints and improving their
under-investment. Fourth, harden budget constraints. Before the
transformation of economic development model, the state-owned
bank credit is interfered with by the administrative instructions
of government, resulting in soft budget constraints of enterprises,
especially state-owned enterprises [41]. With the transformation
and development of economic model, the degree of soft budget
constraint has been reduced, which will harden the budget
constraint of state-owned banks on enterprises, especially state-
owned enterprises [42]. The hardening of budget constraints will
strengthen the supervision and control function of banks, restrain
over-investment, and improve investment efciency.
Further, green nance has the dual attributes of andgreen
nance , which will have complex impacts on the investment of
renewable energy enterprises. First, the nance attribute has
such functions as capital support, resource allocation, and enter-
prise supervision. Capital support means that, through absorbing
idle funds from the society, the nancial system can provide
nancing services to enterprises and improve the nancing envi-
ronment. The resource allocation function means that the nancial
system can guide the ow of nancial resources from inef cient
industries to high-efciency industries, realizing the effective
allocation and maximum utilization of resources. The enterprise
supervision function refers to the nancial system providing
nancing services for enterprises, which makes them responsible
for supervising and controlling enterprises. From the perspective of
credit support, nancial institutions supervise the nancial oper-
ation of enterprises in the pre-loan, in-loan, and post-loan process,
which improves investment efciency and increases enterprise
value. However, on the one hand, the renewable energy industry
has such characteristics as high initial investment requirements
and a long time for recuperation; on the other hand, as economic
man, the aim of a bank is interest maximization. Therefore, in the
early stage of renewable energy development, nancing constraints
are inevitable.
Second, the green attribute requires that the green nancial
development not only focuses on environmental protection, energy
conservation, clean energy, green transportation, and green
buildings but also fully considers corporate social responsibility and
environmental performance in investment and nancing services
to promote green industry development. This attribute aims to
promote renewable energy development from both the source and
the terminus of the industrial chain and then improve investment
efciency of renewable energy enterprises through nancing re-
striction and nal demand of industry change. Third, theoretically,
green nancial development plays a positive role in promoting
enterprise investment efciency, but the inuences of andgreen
nance attributes on nancing are opposite under certain cir-
cumstances. In the early stage of renewable energy industry
development, the credit constraint caused by the attri-nance
bute may offset the improvement effect of its green attribute on
renewable energy investment efciency. Therefore, green nance
has an uncertain inuence on the investment efciency of renew-
able energy enterprises. Fig. 1 shows the theoretical relationship
between green nancial development, bank credit, and renewable
energy investment efciency.
3. Model, variables and data
3.1. Basic model
Based on the theoretical analysis, bank credit plays an inter-
mediary role in the impact of green nancial development on
renewable energy investment efciency. In view of this, this paper
intends to establish a recursive model to analyze whether green
nancial development can affect renewable energy investment
efciency and then test the existence of a bank credit intermediary
effect. In addition, the bank credit channel includes short-term and
long-term channels. To test the differences of credit channel func-
tions, models are established respectively, as shown in (1) (3).
IE
it
¼
b
0
þ
b
1
GF
it
þ
b
2
ROE
it
þ
b
3
Size
it
þ
b
4
CF
it
þ
b
5
Age
it
þ
b
6
ADM
it
þ
b
7
Major
it
þ
b
8
Growth
it
þ þ
X
Year
X
Ind þ w
(1)
L. He et al. / Renewable Energy 143 (2019) 974e984976
where i is the enterprise, t is the year, IE is renewable energy in-
vestment efciency, GF is green nancial development level. ,DEBT
STL, and LTL are total bank loans, short-term bank loans, and long-
term bank loans, respectively. Referring to the research of He et al.
[43]; Jiang et al. [44]; this paper introduces the rate of return on
equity, ROE, enterprise scale, , cashSIZE ow, CF, listed years, ,AGE
management expense ratio, ADM, major shareholder control,
Major Growth Tangible, enterprise growth, , and tangible, , as control
variables. Year and Ind represents the year and industry, respec-
tively. According to the recursive intermediary effect test method
proposed by Baron and Kenny [45 46] and Wen et al. [ ]; we rst
estimate model (1). If the coef cient
b
1
is signicant, it shows that
green nancial development has an inuence on investment ef -
ciency. Then we estimate model (2). If the coef cient
c
1
is signi -
cant, it shows that green nancial development can impact bank
credit. In addition, we estimate model (3). If the coefcients 4
1
and
4
2
are both signicant and the absolute value of 4
1
is smaller than
b
1
, this shows that the partial intermediary effect of bank credit
channels exists. If the coefcient 4
1
is insignicant, while the co-
efcient 4
2
is signicant, this indicates that bank credit channels
have full intermediary effect. Further, considering the existence of
under-investment and over-investment, the original sample is
divided into an over-investment group and an under-investment
group according to whether investment efciency is either
greater or less than 0. Based on these, Models (4)e(6) are estab-
lished, where OVERIE and UNDERIE represent over-investment and
under-investment, respectively.
OVERIE
it
ðorUNDERIE
it
Þ ¼
h
0
þ
h
1
GF
it
þ
h
2
ROE
it
þ
h
3
Size
it
þ
h
4
CF
it
þ
h
5
Age
it
þ
h
6
ADM
it
þ
h
7
Major
it
þ
h
8
Growth
it
þ
X
Year þ
X
Ind þ
z
(4)
DEBT
it
ðorSTL
it
orLTL
it
Þ ¼
g
0
þ
g
1
GF
it
þ
g
2
ROE
it
þ
g
3
Size
it
þ
g
4
CF
it
þ
g
5
Age
it
þ
g
6
Growth
it
þ
g
7
Tangible
it
þ
X
Year
þ
X
Ind þ 6
(5)
OVERIE
it
ðorUNDERIE
it
Þ ¼
t
0
þ
t
1
GF
it
þ
t
2
Debt
it
ðor STL
it
orLTL
it
Þ
þ
t
3
ROE
it
þ
t
4
Size
it
þ
t
5
CF
it
þ
t
6
Age
it
þ
t
7
ADM
it
þ
t
8
Major
it
þ
t
9
Growth
it
þ
X
Year þ
X
Ind þ
n
(6)
3.2. Variables and data selection
Variables and indicators in this paper are shown in Table 1.
This paper takes renewable energy enterprises in the Chinese A
share market as a sample, with the sample range being from 2011 to
2016. Due to the lack of an accurate denition of the renewable
energy industry in the Chinese listed enterprises categories, we
take enterprises whose main business is related to renewable en-
ergy as samples. According to The Industry Classication Guide-
lines issued by China Securities Regulatory Commission in 2012,
we choose the Electricity, Heat, Gas, and Water Production and
Greenfinancedevelopment
Ā āGreen attribute
Supportgreenindustry
Bank credit
Contingentgovernance
Deliverimportantinformation
Reduceagencycosts
Easefinancingconstraints
Hardenbudgetconstraints
Under-investment
Over-investment
Renewableenergy
investment efficiency
Macro-financialenvironment Creditfinancingchannels Microscopiceconomicsubject
C
a
p
i
t
a
l
s
u
p
p
o
r
t
R
e
s
o
u
r
c
e
a
l
l
o
c
a
t
i
o
n
E
n
t
e
r
p
r
i
s
e
s
u
p
e
r
v
i
s
i
o
n
F
i
n
a
n
c
i
n
g
c
o
n
t
r
a
n
t
s
Characteristics ofrenewable energy industry
Long-term
Ā āEconomicman
ĀFinanceāattribute
Eliminate inefficientindustry
Short-
term
Fig. 1. Theoretical relationship between green nancial development, bank credit, and renewable energy investment efciency.
DEBT
it
ðorSTL
it
orLTL
it
Þ ¼
c
0
þ
c
1
GF
it
þ
c
2
ROE
it
þ
c
3
Size
it
þ
c
4
CF
it
þ
c
5
Age
it
þ
c
6
Growth
it
þ
c
7
Tangible
it
þ
X
Year þ
X
Ind þ
s
(2)
IE
it
¼ 4
0
þ 4
1
GF
it
þ 4
2
Debt
it
ðorSTL
it
orLTL
it
Þ þ 4
3
ROE
it
þ 4
4
Size
it
þ 4
5
CF
it
þ4
6
Age
it
þ 4
7
ADM
it
þ 4
8
Major
it
þ 4
9
Growth
it
þ þ
X
Year
X
Ind þ
m
(3)
L. He et al. / Renewable Energy 143 (2019) 974e984 977
Supply Industry (Industry codes are D44, D45, and D46, respec-
tively) and the Ecological Protection and Environmental Man-
agement Industry (Industry code is N77) and select sample
enterprises in accordance with the following principles: (1) Include
enterprises that were listed in Chinese A share market before
December 31, 2010. (2) Exclude enterprises that belong to special
treatment and particular transfer categories. (3) To avoid the in-
uence of issuing either domestic foreign capital stocks or overseas
shares on enterprises investment behavior, the sample does not
contain enterprises that issue B, H, and N shares. (4) Remove some
enterprises with incomplete sample data. Based on the above
principles, 141 enterprises were selected. Further, 5% Winsorization
is applied to all continuous variables of enterprises to reduce the
impact of outliers. Data come from the CSMAR database and the
CCER database. Table 2 shows a statistical description of the original
data of variables.
4. Measurement of green nancial development degree and
renewable energy investment ef ciency
4.1. Measurement of green nancial development degree
According to the denition of green nance in this paper, from
the perspective of nancial institutions, the Chinese green nancial
development degree is measured on the basis of green credit, green
securities, green insurance, green investment, and carbon nance.
Referring to the Chinese green nancial development measure-
ment system established by Zeng et al. [32] and considering the
validity and availability of data, the index system is constructed as
shown in Table 3.
In Table 3, the rst-class index equals to the arithmetic average
value of the corresponding second-class index.
Specically, (1) green credit, which is measured from two
Table 1
Denition and description of variables.
Symbol Variables De nition
Inew New investment (cash paid for the purchase and construction of xed assets, intangible assets and other long-term assets - cash recovered from
disposal of xed assets, intangible assets and other long-term assets)/total assets at the beginning of the year
Q Investment opportunity Tobin Q, Tobin Q¼(total stock market value þ total debt at the end of the year)/total assets at the end of the year
Lev Asset-liability ratio Total debt at the end of the year/total assets at the end of the year, which also indicates the nancing structure.
Cash Cash (Cash at the end of the year þ short-term investment)/total assets at the end of the year
Age Listed years Natural logarithm of the enterprises listing age of at the end of the year
Size Enterprise scale Natural logarithm of the enterprises total assets at the end of the year
Ret Stock yield Annual return on enterprises stock
IE Renewable energy investment
ef ciency
Difference between actual newly increased investment and reasonably expected investment, namely, the residual of model (1).
OVERIE Over-investment The amount that actual newly increased investment exceeds reasonably expected investment, which means that the residual of
model (1) is greater than 0.
UNDERIE Under-investment The amount that actual newly increased investment is lower than reasonably expected investment, which means that the
residual of model (1) is less than 0.
GF Green nancial development
level
Calculated according to the measurement system of Chinas green nance development degree
Debt Loan ratio (Short-term loans at the end of the year þ non-current liabilities due within one year þ long-term loans)/total assets at the end of
the year
STL Short-term loan ratio (Short-term loans at the end of the year þ non-current liabilities due within one year)/total assets at the end of the year
LTL Long-term loan ratio long-term loans/total assets at the end of the year
ROE The rate of return on equity Net income/ownership interest
CF Cash ow Net operating cash ow/total assets at the beginning of the year
ADM Management expense ratio Management expenses/main business income
Major Major shareholder control The shareholding ratio of the largest shareholder
Growth Growth Sales growth rate¼(Operating income of this year - operating income of last year)/operating income of last year
Tangible Tangible Net xed assets at the end of year/total assets at the end of year
Year Year Annual dummy variable
Ind Industry Industrial dummy. According to the main businesses of renewable energy listed enterprises, renewable energy industry is
divided into wind energy, solar energy, water energy, geothermal energy, biomass energy and other industries.
Table 2
Descriptive statistics of variables.
Variables Mean Median Maximum Minimum Std. Dev. Observations
Inew 0.0833 0.0526 2.6154 0.1357 0.1318 910
Q 3.5635 1.6797 53.5115 0.3705 5.4449 910
Lev 0.5264 0.5336 3.2619 0.0123 0.23399 910
Cash 0.2042 0.1312 3.4970 0.0457 0.2791 910
Age 2.2678 2.4849 3.2958 0.0000 0.7370 910
Size 22.4607 22.2575 26.4580 19.6255 1.3387 910
Ret 0.1369 0.0295 2.6574 0.6899 0.4768 910
Debt 0.2619 0.2485 1.3093 0.0000 0.1911 829
STL 0.1502 0.1348 1.3093 0.0000 0.1193 829
LTL 0.1117 0.0475 0.7297 0.0000 0.1473 829
ROE 0.0167 0.0602 1.8771 20.7367 0.7763 829
CF 0.0400 0.0512 0.7425 7.1302 0.2777 829
ADM 0.0857 0.0715 5.2077 0.0022 0.1896 829
Major 35.0742 33.2300 85.2300 6.6100 15.9321 829
Growth 18.1821 0.0702 14883.0600 0.9167 516.9037 829
Tangible 0.3170 0.2456 1.4650 3.77E-05 0.2222 829
L. He et al. / Renewable Energy 143 (2019) 974e984978
aspects, the proportion of green credit and the interest expenditure
in high energy-consumption industries. (2) The green securities
index re ects the nancial support effect of the capital market for
environmental protection and high energy-consumption enter-
prises. (3) Green insurance. The environmental protection liability
insurance for Chinese enterprises has been implemented since
2013, which means that there is a lack of reliable data. Thus, the
agricultural insurance development is used to measure approxi-
mately the development of green insurance. (4) Green investment
development is measured from three aspects: public expenditure
on energy conservation and environmental protection, foreign
direct investment (FDI), and investment in governing environ-
mental pollution. While the classication of environmental pro-
tection enterprises lacks industry standards, this paper selects the
ecological protection and environmental governance enterprises in
the China Securities Regulatory Commission Industry Classi cation
for measurement. As FDI in energy-saving and environmental
protection industries lacks corresponding caliber data, this paper
uses FDI of water conservancy, environment, and public facilities
management industries released by Chinese National Bureau of
Statistics as a substitute. (5) Carbon nance represents the inter-
national inuence of Chinese green nancial development.
Overall, while, on the one hand, it difcult to accurately measure
green nancial development degree because of the development of
various green nancial markets is not mature and relevant data are
lacking, on the other hand, the relevant statistical data cover a short
period of time. Based on the actual situation of China, considering
the availability of data, we determined 2011 as the base year, and
our sample range was 2011e2016. The data come from the website
of National Bureau of Statistics of China, the website of China Clean
Development Mechanism, the CCER database, and annual reports
and social responsibility reports of the banks mentioned above.
Based on these data, we have calculated the Chinese green nancial
development index from 2011 to 2016, as shown in .Fig. 2
It can be seen that green nancial development in China has
generally increased, while the growth rate is relatively slow. In
2011e2012, the annual growth rate was approximately 1%, which is
relatively low. In 2012e2013, the annual growth rate was
approximately 4%, entering a rapid growth phase. However, in
2014, the green nancial development degree declined slightly.
This may be due by market adjustments and other reasons, such as
changes of the green credit cycle and the green securities market. In
2014e2016, the annual growth rate of Chinese green nancial
development index was around 1%, which represents a decline.
Overall, the degree of green nancial development in China is
relatively low at present. From the practical point of view, this may
be mainly due to the uncertain development prospect of green
securities, green investment, and other markets; the low level of
government support; and the corresponding adjustment of nance
development due to the economic structure adjustment.
4.2. Measurement of renewable energy investment ef ciency
Referring to the investment efciency model proposed by
Richardson [47] this paper quanties enterprises annual over-
investment and under-investment levels. Yu et al. [48] improved
this model and used a panel data xed effect model to estimate the
optimal investment level of enterprises. The residual in model (7)
Table 3
Measurement system of green nancial development degree in China.
The rst-class index
and the weight
The second-class index Calculation description
Green credit (45%) Ratio of green credit Total green credit of ve representative banks
a
/Total loans of ve representative
banks
Ratio of interest expense in high energy-consumption industries Interest expense of six high energy-consumption industries/Total interest
expense of industries
Green securities (25%) Ratio of environmental protection companies market value Total market value of environmental protection companies/Total market value
of A-shares
Ratio of high energy-consumption companies market value Total market value of six high energy-consumption industries
b
/Total market
value of A-shares
Green insurance (15%) Ratio of agricultural insurance scale Agricultural insurance expenditure/Total insurance expenditure
Loss ratio of agricultural insurance Agricultural insurance expenditure/Agricultural insurance income
Green investment
(10%)
Ratio of environmental protection public expenditure Fiscal expenditure of energy-saving and environmental-protection industries/
Total scal expenditure
Ratio of foreign direct investment (FDI) of energy-saving and
environmental-protection industries
Foreign direct investment of energy-saving and environmental-protection
industries/Total foreign direct investment
Ratio of investment governing environmental pollution Investment of governing environmental pollution/GDP
Carbon nance (5%) Ratio of trading volume of Clean Development Mechanism
project
Percentage of Chinese Clean Development Mechanism project transactions in all
Clean Development Mechanism projects
a
The representative banks are the ve biggest banks with total asset in China. They are Industrial and Commercial Bank of China, the Bank of China, the China Construction
Bank, the Bank of Communications, and the China Development Bank. These banks assets account for more than 40% of the banking industry; thus, the ve banks are relatively
representative.
b
According to the Chinese 2010 National Economic and Social Development Statistics Report, the six major high energy-consumption industries include the chemical
industry of raw materials and chemical products manufacturing; the non-metallic mineral products industry; the ferrous metal smelting and rolling processing industry; the
non-ferrous metal smelting and rolling processing industry; the oil processing; coking, and nuclear fuel processing industry; and the electricity and heat production and
supply industry.
100.00
100.68
104.59
104.32
105.47
106.58
100.00
101.00
102.00
103.00
104.00
105.00
106.00
107.00
2011 2012 2013 2014 2015 2016 Year
Fig. 2. Green nancial development degree in China in 2011e2016.
L. He et al. / Renewable Energy 143 (2019) 974e984 979
indicates enterprises investment efciency. If the residual is
greater than 0, enterprises are over-investing. When the residual is
less than 0, enterprises are underinvesting.
Inew
it
¼
a
0
þ
a
1
Q
it 1
þ
a
2
Lev
it 1
þ
a
3
Cash
it 1
þ
a
4
Age
it 1
þ
a
5
Size
it 1
þ
a
6
Ret
it 1
þ
a
7
Inew
it 1
þ
X
Year þ
X
Indþε
(7)
where i represents the renewable energy listed enterprises, t
represents the year, and ε is the random disturbance term. The
denitions of related variables are shown in Table 1. Based on the
above analysis, a unit root test was conducted, and the results show
that the series are stationary at 1% of the signicant level. According
to the co-integration test results, there is a long-term equilibrium
relationship among related variables. Besides, Hausman test results
show that a random effect panel model should be adopted. Then,
the model (7) was estimated using the Least Square Regression
method. The regression results are shown in Table 4.
As can be seen from Table 4, Lev
it1
, Cash
it1
, Age
it1
, and
Inew
it1
are all signicant at the 10% level, and the model is sig-
nicant. Therefore, we use the residual value of the investment
efciency model to represent renewable energy investment ef -
ciency, IE. If the residual value is greater than 0, it indicates
renewable energy over-investment, expressed as OVERIE. The
greater the positive value, the more serious the over-investment.
When the residual value is less than 0, enterprises are under-
investing, expressed as UNDERIE. The smaller the negative value,
the more serious the under-investment. Due to the missing values
of enterprises in the research period, there are missing residual
values, and we nally obtain 796 samples of 141 enterprises in
2011e2016. Table 5 is a statistical description of investment ef -
ciency. As can be seen from Table 5, the proportion of renewable
energy under-investment is 62.81%, which is a relatively large, and
which shows that Chinese renewable energy enterprises are
generally underinvesting. This result is consistent with the ndings
of Wu et al. [49].
Furthermore, Fig. 3 is the change of renewable energy invest-
ment values for 141 enterprises in 2011e2016. It can be seen that
investment efciency of 141 renewable energy listed enterprises is
generally low in the research period, while there is obvious uc-
tuation, with the main range of changes being 0.190 to 0.340.
Moreover, the gap of investment efciency between enterprises is
remarkable.
5. Estimation and results analysis
To analyze the intermediary paths along which green nancial
development affects renewable energy investment ef ciency
through bank credit, models (1)e(3) are estimated based on the
total sample of renewable energy investment efciency, the over-
investment group, and the under-investment group, respectively.
The regression results are shown in Tables 6e8.
As can be seen from Table 6:
1) The impact of bank loans on renewable energy investment ef-
ciency is insigni cant (column 3); thus the intermediary effect
is untenable. Meanwhile, the direct effect of green nancial
development on renewable energy investment efciency is
signicant, and the coefcient is 0.0017, which shows that green
nancial development increases the uctuation of renewable
energy investment efciency and reduces renewable energy
investment efciency to some extent. In addition, the coef cient
of green nancial development on bank loans is 0.0146, which
indicates that green nancial development inhibits the bank
credit investment in renewable energy enterprises in the
research period. The reason lies in the fact that, as pointed out in
the theoretical analysis, renewable energy enterprises have
nancing constraints in the early development stage, and the
nancing constraints caused by the nance attribute of green
nancial development may offset the improvement effect of its
green attribute on renewable energy investment efciency,
which has a generally inhibiting effect on renewable energy
investment efciency.
2) The effect of green nancial development and short-term loans
on renewable energy investment efciency is signicant (col-
umns 4e6); this shows that a partial intermediary effect exists.
According to the estimation method of [46], the intermediary
effect of a short-term loan is 0.00030 (0017e0.0014), which
accounts for 17.65% (0.0003/0.0017) of the total effect. The
specic path is that green nancial development reduces the
short-term loan amount for renewable energy enterprises,
which reduces the power of the contingent governance function
of short-term loans for renewable energy investment, thus
inhibiting renewable energy investment efciency. In practice,
the green attribute of green nance is mainly embodied in two
aspects: supporting green industries and eliminating inef cient
industries. Renewable energy enterprises belong to green in-
dustry, but the industry characteristics hinder short-term ef -
ciency and lack market competitiveness. Moreover, green
nancial development in China is still in its initial stage, with a
relatively slow development speed and a limited guiding role in
resource allocation. This results in negative effects on short-
term loans.
3) The effect of a long-term loan on renewable energy investment
efciency is insignicant (column 9); thus the intermediary
Table 4
Regression results of renewable energy investment efciency model.
Variables Coefcient Standard deviation T value P value
Intercept 0.0591 0.0466 1.2682 0.2051
Q
it 1
0.0005 0.0006 0.8763 0.3811
Lev
it 1
0.0189 0.0115 1.6471 0.0999*
Cash
it 1
0.0310 0.0149 2.0780 0.0380**
Age
it 1
0.0099 0.0032 3.0744 0.0022***
Size
it 1
0.0014 0.0021 0.6758 0.4993
Ret
it 1
0.0050 0.0055 0.9167 0.3596
Inew
it1
0.4884 0.0365 13.3879 0.0000***
R-squared 0.3486 Sum squared resid 1.7401
F-statistic 24.4886 Durbin-Watson stat 1.9474
Prob (F-statistic) 0.0000 S.E. of regression 0.0473
Note: *, **, and *** indicate signicance levels of 0.1, 0.05, and 0.01, respectively (the
same below).
Table 5
Descriptive statistics of renewable energy investment efciency.
Variables Mean Median Maximum Minimum Std. Dev. Observations
IE 0.0000131 0.0157088 2.455006 0.1836559 0.1200028 796
OVERIE 0.0720604 0.0379021 2.455006 0.0003358 0.1703705 296
UNDERIE 0.0426389 0.0379549 0.0001873 0.1836559 0.0296862 500
Note: The renewable energy investment efciency value is generally small; thus, we choose 7 digits after the decimal point for measurement.
L. He et al. / Renewable Energy 143 (2019) 974e984980
effect is untenable. Meanwhile, the direct effect coefcient of
green nancial development on renewable energy investment
efciency is 0.0021, which increases the uctuation of renew-
able energy investment efciency. Additionally, green nancial
development inhibits the long-term loans of renewable energy
enterprises to a certain extent, with a coefcient of 0.0071. The
reason for this is the same as with the short-term mediation
effect.
As can be seen from Table 7:
1) Only the effect of green nancial development on renewable
energy investment efciency is insignicant, and the complete
intermediary effect of bank loans exists (column 3). Green
nancial development reduces the amounts of bank loans for
renewable energy enterprises, which eases the renewable en-
ergy over-investment.
Fig. 3. The renewable energy investment efciency value in China in 2011e2016. Note: the number on the Y axis indicates 141 listed renewable energy enterprises.
Table 6
Intermediary effect test results of green nancial development, bank credit, and renewable energy investment efciency.
Dependent variable Bank loan Short-term loan Long-term loan
(1) (2) (3) (4) (5) (6) (7) (8) (9)IE Debt IE IE STL IE IE LTL IE
Intercept 0.5990*** (0.0000) 0.5839***
(0.0030)
0.5923***
(0.0000)
0.5990*** (0.0000) 0.8783***
(0.0000)
0.5573***
(0.0000)
0.5990*** (0.0000) 0.4142***
(0.0014)
0.5884***
(0.0000)
GF 0.0017*** (0.0003) 0.0146***
(0.0000)
0.0016***
(0.0004)
0.0017*** (0.0003) 0.0080***
(0.0000)
0.0014***
(0.0025)
0.0017*** (0.0003) 0.0071***
(0.0000)
0.0021***
(0.0000)
Debt 0.0097
(0.3398)
STL 0.0478**
(0.0361)
LTL 0.0514
(0.1143)
ROE 0.0040 (0.9012) 0.2510***
(0.0000)
0.0002
(0.9935)
0.0040 (0.9012) 0.1734***
(0.0000)
0.0078
(0.6291)
0.0040 (0.9012) 0.1180**
(0.0200)
0.0151
(0.4889)
Size 0.0182*** (0.0000) 0.0394***
(0.0000)
0.0186***
(0.0000)
0.0182*** (0.0000) 0.0024
(0.6449)
0.0181***
(0.0000)
0.0182*** (0.0000) 0.0500***
(0.0000)
0.0158***
(0.0000)
CF 0.1678*** (0.0000) 0.1500**
(0.0140)
0.1684***
(0.0000)
0.1678*** (0.0000) 0.1750***
(0.0001)
0.1606***
(0.0000)
0.1678*** (0.0000) 0.0575***
(0.0021)
0.1551***
(0.0000)
Age 0.0081 (0.2485) 0.0600***
(0.0000)
0.0076
(0.2979)
0.0081 (0.2485) 0.0381***
(0.0001)
0.0067
(0.3728)
0.0081 (0.2485) 0.0168*
(0.0992)
0.0093
(0.1673)
ADM 0.2557*** (0.0000) 0.2479***
(0.0000)
0.2557*** (0.0000) 0.2374***
(0.0000)
0.2557*** (0.0000) 0.2772***
(0.0000)
Major 0.0002* (0.0776) 0.0002***
(0.0074)
0.0002* (0.0776) 0.0002***
(0.0070)
0.0002* (0.0776) 0.0002**
(0.0105)
Growth 0.0146** (0.0332) 0.0047
(0.6482)
0.0144*
(0.0587)
0.0146** (0.0332) 0.0026
(0.7342)
0.0146*
(0.0550)
0.0146** (0.0332) 0.0004
(0.9443)
0.0151**
(0.0303)
Tangible 0.2853***
(0.0000)
0.0665***
(0.0098)
0.2028***
(0.0000)
R
2
0.1601 0.2651 0.1606 0.1601 0.1289 0.1655 0.1601 0.3375 0.1655
F-value 8.7259 18.3030 8.2562 8.7259 7.5120 8.5631 8.7259 25.8563 8.5614
L. He et al. / Renewable Energy 143 (2019) 974e984 981
2) Short-term loans have a full intermediary effect (column 6). The
results suggest that green nance curbs renewable energy
overinvestment by reducing short-term loans. This is consistent
with the intermediary effect of bank loans. By contrast, the
intermediary channel of a short-term loan is more effective in
inhibiting renewable energy over-investment (columns 3 6).e
Table 7
Intermediary effect test results of green nancial development, bank credit, and renewable energy over-investment.
Dependent variable Bank loan Short-term loan Long-term loan
(1) (2)OVERIE
Debt
(3) (4) (5)OVERIE OVERIE
STL
(6) (7) (8)OVERIE OVERIE
LTL
(9)OVERIE
Intercept 0.0099
(0.7310)
0.9719***(0.0022) 0.0347
(0.7737)
0.0099
(0.7310)
1.0643***
(0.0000)
0.0543*
(0.0527)
0.0099
(0.7310)
0.0542
(0.8667)
0.0027
(0.9841)
GF 0.0006*
(0.0785)
0.0188***
(0.0000)
9.67E-05
(0.9331)
0.0006*
(0.0785)
0.0099***
(0.0000)
0.0002
(0.5387)
0.0006*
(0.0785)
0.0085***
(0.0017)
0.0004
(0.7491)
Debt 0.0315*
(0.0559)
STL 0.0356*
(0.0977)
LTL 0.0267
(0.2455)
ROE 0.0377
(0.3416)
0.2695**
(0.0192)
0.0186
(0.6498)
0.0377
(0.3416)
0.1647**
(0.0129)
0.0250
(0.5354)
0.0377
(0.3416)
0.0871
(0.3492)
0.0287
(0.5040)
Size 0.0056***
(0.0004)
0.0437***
(0.0000)
0.0034
(0.1582)
0.0056***
(0.0004)
0.0009
(0.8907)
0.0049**
(0.0037)
0.0056***
(0.0004)
0.0382***
(0.0000)
0.0036
(0.2045)
CF 0.0775*
(0.0692)
0.0777
(0.4831)
0.0649*
(0.0853)
0.0775*
(0.0692)
0.1499***
(0.0016)
0.0743*
(0.0886)
0.0775*
(0.0692)
0.0501
(0.5006)
0.0654
(0.1185)
Age 0.0105***
(0.0069)
0.0334*
(0.0682)
0.0086**
(0.0488)
0.0105***
(0.0069)
0.0010
(0.1915)
0.0086*
(0.0757)
0.0105***
(0.0069)
0.0327*
(0.0601)
0.0087*
(0.0610)
ADM 0.1154*
(0.0525)
0.1782**
(0.0191)
0.1154*
(0.0525)
0.1529**
(0.0186)
0.1154*
(0.0525)
0.1497*
(0.0790)
Major 0.0003**
(0.0325)
0.0003*
(0.0572)
0.0003**
(0.0325)
0.0003**
(0.0269)
0.0003**
(0.0325)
0.0003*
(0.0655)
Growth 0.0113
(0.2521)
0.0092
(0.6181)
0.0123*
(0.0893)
0.0113
(0.2521)
0.0140
(0.3204)
0.0110
(0.2562)
0.0113
(0.2521)
0.0050
(0.7065)
0.0128*
(0.0895)
Tangible 0.3089***
(0.0000)
0.0792**
(0.0152)
0.1885***
(0.0000)
R
2
0.1186 0.3966 0.1353 0.1186 0.1545 0.1306 0.1186 0.3885 0.1296
F-value 2.3453 11.4624 2.4088 2.3453 3.1852 2.3117 2.3453 11.0791 2.2923
Table 8
Intermediary effect test results of green nancial development, bank credits and renewable energy under-investment.
Dependent variable Bank loan Short-term loan Long-term loan
(1) (2)UNDERIE
Debt
(3)
UNDERIE
(4)
UNDERIE
(5)
STL
(6)
UNDERIE
(7)
UNDERIE
(8)
LTL
(9)
UNDERIE
Intercept 0.5086***
(0.0000)
0.1730
(0.5242)
0.4869***
(0.0000)
0.5086***
(0.0000)
0.7591***
(0.0000)
0.4719**
(0.0000)
0.5086***
(0.0000)
0.6334***
(0.0001)
0.5058***
(0.0000)
GF 0.0032**
(0.0000)
0.0112***
(0.0000)
0.0027***
(0.0000)
0.0032**
(0.0000)
0.0071***
(0.0000)
0.0029***
(0.0000)
0.0032**
(0.0000)
0.0057***
(0.0000)
0.0031***
(0.0000)
Debt 0.0315***
(0.0000)
STL 0.0462***
(0.0000)
LTL 0.0107
(0.4044)
ROE 0.0083
(0.5413)
0.2379***
(0.0009)
0.0064
(0.6555)
0.0083
(0.5413)
0.1775***
(0.0000)
0.0038
(0.7943)
0.0083
(0.5413)
0.1350***
(0.0007)
0.0057
(0.7047)
Size 0.0055***
(0.0000)
0.0426***
(0.0000)
0.0068***
(0.0000)
0.0055***
(0.0000)
0.0006
(0.9238)
0.0054***
(0.0001)
0.0055***
(0.0000)
0.0536***
(0.0000)
0.0059***
(0.0001)
CF 0.0422***
(0.0072)
0.2036**
(0.0194)
0.0440***
(0.0063)
0.0422***
(0.0072)
0.1830***
(0.0025)
0.0346**
(0.0349)
0.0422***
(0.0072)
0.0458
(0.3405)
0.0461***
(0.0067)
Age 0.0070***
(0.0016)
0.0594***
(0.0004)
0.0093***
(0.0001)
0.0070***
(0.0016)
0.0331***
(0.0000)
0.0086***
(0.0002)
0.0070***
(0.0016)
0.0204**
(0.0466)
0.0074***
(0.0016)
ADM 0.0536
(0.1016)
0.0283
(0.4062)
0.0536
(0.1016)
0.0361
(0.2992)
0.0536
(0.1016)
0.0493
(0.1650)
Major 0.0001
(0.1266)
0.0002*
(0.0915)
0.0001
(0.1266)
0.0001
(0.1572)
0.0001
(0.1266)
0.0001
(0.1381)
Growth 0.0064**
(0.0322)
0.0005
(0.9736)
0.0057*
(0.0651)
0.0064**
(0.0322)
0.0066
(0.6117)
0.0061**
(0.0441)
0.0064**
(0.0322)
0.0007
(0.9322)
0.0063**
(0.0420)
Tangible 0.3435***
(0.0000)
0.0802*
(0.0515)
0.2117***
(0.0000)
R
2
0.3922 0.3014 0.4142 0.3922 0.1335 0.4141 0.3922 0.3978 0.3907
F-value 18.2974 13.0243 18.8931 18.2974 4.6523 18.8860 18.2974 19.9429 17.1349
L. He et al. / Renewable Energy 143 (2019) 974e984982
3) The effect of long-term loans on renewable energy over-
investment is insignicant (column 9), and the intermediary
effect is untenable. Meanwhile, as can be seen from columns (7)
and (8), the direct effect of green nancial development on
renewable energy over-investment is signicant, and the coef-
cient is 0.0099. The results reveal that green nancial
development can reduce renewable energy over-investment to
a certain extent and improve renewable energy investment ef-
ciency. Moreover, green nancial development can reduce the
long-term loans of renewable energy enterprises with over-
investment problems. This is in line with the theoretical
expectation.
As can be seen from Table 8:
1) The coefcients of green nancial development and bank loans
on investment efciency are all signicant (columns 1e3), and
the partial intermediary effect of bank loans exists. The inter-
mediary effect is 0.0005 (0.0032e0.0027), which accounts for
15.63% (0.0005/0.0032) of the total effect. Specically, green
nancial development reduces bank loans for renewable energy
enterprises, while bank loans have a negative effect on renew-
able energy under-investment. Therefore, green nancial
development cannot alleviate under-investment of renewable
energy. This is similar to the results in the whole sample.
2) The coefcients of green nancial development and short-term
loans are signicant (columns 4e 6), which indicates that a
partial intermediary effect of short-term loans exists. Green
nancial development has a positive effect on the investment
shortage by reducing the short-term loan amount of renewable
energy enterprises. The intermediary effect of bank loans is
0.0003 (0.0032e0.0029), which accounts for 9.38% (0.0003/
0.0032) of the total effect. In contrast, the partial intermediary
effects of bank loans are greater than are those of short-term
loans. Specically, the effect of green nance development on
bank loans is greater than is its effect short-term loans. More-
over, the negative effect of bank loans on renewable energy
under-investment is greater than is that of short-term loans.
3) The effect of long-term loans on renewable energy under-
investment is insignicant (column 9); thus the intermediary
effect of long-term loans is untenable. Meanwhile, the positive
effect of green nancial development on renewable energy in-
vestment efciency is signicant, and the coefcient is 0.0032.
This reveals that green nancial development exacerbates
renewable energy under-investment (columns 7e9). Moreover,
green nance development reduces the long-term loans of
renewable energy enterprises.
6. Conclusions and suggestions
This paper measures the degree of green nancial development
and the investment efciency of 141 listed renewable energy en-
terprises of China. The results show that within the study period,
green nancial development reduces the bank credit of renewable
energy enterprises and has a negative inuence on renewable en-
ergy investment efciency. The partial intermediary effect of short-
term loans is signicant. Besides, for renewable energy enterprises
that are overinvesting, green nancial development reduces
renewable energy investment by reducing bank credit distribution,
in which the full intermediary effect of bank loans and short-term
loans is signicant; for renewable energy enterprises that are
underinvesting, green nancial development cannot alleviate
under-investment. However, green nancial development can
restrain bank credit for renewable energy enterprises to some
extent. The full intermediary effect of bank loans and short-term
loans is signi cant.
In practice, to improve the positive promotion effect of green
nancial development on renewable energy investment efciency,
the government, nancial institutions, and enterprises must coor-
dinate with each other. The key point is to give play to the guiding
role of green nance in resource allocation. The government should
both construct and consummate the green nancial system and
actively promote green nancial development. On the one hand,
through legislative means to build a green nancial system through
legislation; on the other hand, to support the green industry
through Financial, Monetary and Environmental Policies or Green
funds, and then to promote green nance through green industry.
Financial institutions should actively produce innovative green
nancial products and support the development of renewable en-
ergy enterprises in multiple ways. In addition to green credit, green
bonds, green insurance and specic nancing tools for renewable
energy enterprises should be vigorously developed. Besides, policy
nancial institutions should also give full play to their supporting
role in renewable energy enterprises development. As for renew-
able energy enterprises, they should strengthen their internal
management, improve competitiveness in the nancing market;
especially for enterprises under-investment, developing nancing
channels is the key to improve investment efciency.
Conicts of interest
The authors declare no conicts of interest.
Acknowledgments
The authors are grateful for the National Natural Science
Foundation of China (Grant No.71874185), the Ministry of Educa-
tion of Humanities and Social Science Project of China (Grant No.
16YJAZH015) and the National Natural Science Foundation of China
(Grant No. 41801118).
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Renewable Energy 143 (2019) 974 984 e
Contents lists available at ScienceDirect Renewable Energy
j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / r e n e n e
Can green financial development promote renewable energy
investment efficiency? A consideration of bank credit
Lingyun He a, Rongyan Liu a, Zhangqi Zhong b, *, Deqing Wang a, Yufei Xia c
a School of Management, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, China
b School of Economics, Zhejiang University of Finance and Economics, Hangzhou, 310018, China
c Business School, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China a r t i c l e i n f o a b s t r a c t Article history:
Taking 141 listed renewable energy enterprises in China as a sample, the Richardson model is adopted to Received 18 September 2018
measure their investment efficiency in this paper. On this basis, an intermediary effect model of panel Received in revised form
data is constructed to empirically analyze the intermediary effect of green financial development on 14 March 2019
renewable energy investment efficiency through bank loans, short-term loans, and long-term loans. We Accepted 14 May 2019
find that China’s green financial development has a negative impact on bank loan issuance in general, Available online 17 May 2019
and inhibits the improvement of renewable energy investment efficiency to a certain extent, with an
effect degree of 0.0017. Besides, the short-term loan has few intermediate effect on investment efficiency, Keywords:
while there is no intermediary effect of long-term loans. Moreover, as for the over-investment renewable Green finance Bank credit
energy enterprises, intermediary effect of bank loans exists. Green financial development can inhibit Investment efficiency
over-investment in renewable energy by reducing bank credit issuance; for renewable energy companies Renewable energy investment
of under-investment, on the contrary, it aggravates the under-investment to a certain extent. This paper
suggests that the government should both construct and consummate the green financial system
through policies and regulation. Financial institutions should actively produce innovative green financial
products and support the development of renewable energy enterprises and the renewable energy
enterprises should strengthen their internal management and develop financing channels.
© 2019 Elsevier Ltd. All rights reserved. 1. Introduction
in the world. China’s renewable energy investment is growing
rapidly, and some issues must be addressed. On the one hand, the
In October 2015, the Chinese government put forward the
government needs to pay more attention to the quality and benefits
concept of “Green Development” and advocated development of a
of growth. On the other hand, the development of a renewable
low-carbon economy. In practical terms, under the growth model
energy industry and the promotion of economic and industrial
that the economy is driven by the consumption of energy resources,
structure transformation must, ultimately, be implemented at the
developing a renewable energy industry is an important route for
level of the microcosmic subject, specifically, at the level of enter-
promoting the transformation of energy provision and industrial
prises. Investment efficiency is an important issue in respect of
structure and developing a sustainable economy. “The 13th Five -
enterprises. According to the “financing investment chain, e ”
Year Plan for Renewable Energy Development” of China proposes to
financing is one of the important factors affecting investment ef-
adhere to a clean, low-carbon, safe, and efficient development
ficiency. “The 2017 Statistical Data Report on the Scale of Social
policy and promote the development of the renewable energy in-
Finance”, released by the People’s Bank of China, shows that loans
dustry. According to “The 2018 Global Renewable Energy Invest-
granted by Chinese financial institutions accounted for 69.6% of the
ment Trend Report”, China’s renewable energy investment reached
social financing scale in 2017, which indicates that bank credit is the
126.6 billion US dollars in 2017, showing an increase of 31% over
most important source of external financing for Chinese enter-
2016, and China has become the largest renewable energy investor
prises. Therefore, bank credit will have an important impact on
enterprise investment through the “financing-investment” chain.
Further, at the G20 summit in 2016, the concept of “Green
Finance” received extensive attention from all of society. In practice, * Corresponding author.
E-mail address: zzhongz@zufe.edu.cn (Z. Zhong).
as early as the 1990s, China began to lay out plans for green
https://doi.org/10.1016/j.renene.2019.05.059
0960-1481/© 2019 Elsevier Ltd. All rights reserved.
L. He et al. / Renewable Energy 143 (2019) 974e984 975
financial development. In 1995, the People’s Bank of China issued a
for Zhai and Gu’s conclusion is that the existence of soft budget
notice on implementing credit policies and strengthening envi-
constraints weakens the easing effect of financial development on
ronmental protection, which was the first attempt to develop green
the financing constraints of state-owned enterprises, which brings
finance in China. Since then, the State Environmental Protection
about over-investment and efficiency losses. Further, Shen et al.
Administration, the People’s Bank of China, and other agencies have
[30] and Li et al. [31] think that, for state-owned enterprises, the
issued several policies and measures. In 2015, “The Overall Plan for
financial development level is negatively related to investment
Ecological Civilization System Reform” was released, and the Chi-
efficiency. For non-state-owned enterprises, the improvement of
nese government proposed establishing of a green financial system
financial development level can alleviate financing constraints and
for the first time. In 2016, the People’s Bank of China etc. issued
improve investment efficiency. It is worth mentioning that other
“Guidance on Building a Green Financial System”, indicating that
scholars indicate that financial development plays an adjusting role
green finance had entered a stage of rapid development. There are
in the relationship between enterprise financing and investment
various aspects to this. On the one hand, green financial develop-
efficiency. Some empirical research shows that, the higher the
ment can improve the macro-financial environment and impel
financial development level, the stronger the negative relationship
micro-economic entities to pay more attention to environmental
between bank loans and over-investment; that is, financial devel-
benefits. On the other hand, green financial development has
opment has a positive adjustment effect on the relationship be-
changed the traditional “financing investment e ” channel and has
tween bank loans and investment efficiency [11].
had a complicated impact on enterprise investment. In view of this,
Overall, scholars have conducted studies on financial develop-
based on the general relationship between financial development
ment and the relationship between enterprise financing and in-
and economic development, this paper intends to study the
vestment efficiency. Most of them have affirmed the influence of
renewable energy investment efficiency from the perspective of
financial development and different financing channels on enter-
microcosmic subject, and then analyze how green finance in-
prise investment efficiency, but conclusions are inconsistent. Under
fluences renewable energy investment efficiency through bank
the background of sustainable economic development, green credit channels.
finance plays an important role in affecting renewable energy in-
From the research perspective, existing research mainly focuses
vestment. How about the green finance development in China? Is
on the relationship between financing channels and investment
the effect of green finance on renewable energy investment posi-
efficiency. As to the enterprise financing channels, it encompasses
tive or negative? Through what channels? Will financing policy
three aspects: internal financing, debt financing, and equity
preferences improve renewable energy investment efficiency?
financing. As to internal financing. Deng and Zhang [1] think that
What should the government, financial institutions, and enter-
internal financing can reduce the investment efficiency of enter-
prises do in order to improve the positive promotion effect of green
prises. Xiong et al. [2] show that free cash flow is positively related
financial development on renewable energy investment efficiency?
to enterprise investment. Yang and Hu [3]; Xiao [4]; Zhang et al. [5];
In view of these problems, this paper tries to do some in-depth
and Chen et al. [6] indicate that excessive free cash flow of enter-
research from the above aspects. We try to further clarify and
prises will lead to over-investment, while shortage of free cash flow
quantitatively analyze the transmission channels among financial
will lead to under-investment. As to debt financing, Jensen [7]
development, enterprise financing, and investment efficiency from
points out that debt has a camera governance function, which can
“green development” perspective, and finally put forward some
reduce the agency cost between shareholders and managers and
suggestions on how to develop green finance and then promote
improve investment efficiency. And banks holding companies with
renewable energy development. The second part of this paper ex-
higher investment efficiency can obtain more debt financing [8]. On
plains the theoretical relationship between green financial devel-
the one hand, debt financing can increase enterprises” cash flow
opment, bank credit, and renewable energy investment. The third
and alleviate under-investment [9]. On the other hand, debt
part presents variables, the sample, and basic model construction.
financing has a controlling effect on over-investment [10e12].
The fourth part describes the measurement of green financial
However, Zhang et al. [13] and Zhang et al. [14,15] find that, due to
development level and renewable energy investment efficiency.
the existence of “soft budget constraints”, the overall effect of debt
The fifth part analyzes the direct and indirect effects of green
management is uncertain. Specifically, the governance effect of
financial development, bank credit, and renewable energy invest-
business credit is significant, which can effectively improve enter-
ment efficiency. The sixth part concludes and suggests.
prise investment efficiency, but the governance effect of bank loans
and corporate bonds varies according to the research industry. The
2. Theoretical relationships among green financial
effect of short-term creditor’s rights governance is significant,
development, bank credit, and renewable energy investment
while the governance effect of long-term creditor’s rights is insig- efficiency
nificant [1,14e17]. As to equity financing, the low-cost nature of
equity financing can increase the free cash flow of enterprises,
There is no uniform definition of green finance in academia.
improve under-investment, and aggravate over-investment, which
Referring to the existing research [32e34], this paper holds that
decreases investment efficiency [18,19].
green finance is a financial form that can effectively allocate
As far as financial development, financing channels, and in-
financial resources and guide the capital flow to low-energy con-
vestment efficiency are concerned, the existing research analyzes
sumption, low-pollution, and high-efficiency industries through
that financial development can affect investment efficiency by
green financial products such as green credit, green securities,
financing channels, which indicates that financial development can
green insurance, green investment and carbon finance whose
promote investment efficiency by easing corporate financing con-
objective is to promote the optimization of economic structures
straints and reducing agency costs [3,20 26 e ]. Mallic and Yang [2 ] 7
and realize the win-win situation between environment and
believe that the investment efficiency of enterprises is relatively
economy. In terms of “renewable energy investment”, there are two
low for countries with a low financial development level. Kong et al.
kinds of definition. The first is enterprises’ investment in the
[28] point out that financial development has a “crowding out”
renewable energy field. For example, Xu and Bai [35] believe that
effect on enterprise investment, but a high level of financial
renewable energy investment is enterprises’ investment in
development will improve the investment efficiency of enterprises.
renewable energy in a given year. The second is the investment of
Zhai and Gu [29] come to the opposite conclusion. The main reason
renewable energy enterprises. Zhang et al. [14,15] point out that 976
L. He et al. / Renewable Energy 143 (2019) 974e984
renewable energy investment is the cash used by renewable energy
“finance”, which will have complex impacts on the investment of
enterprises to construct fixed assets, intangible assets, and other
renewable energy enterprises. First, the “finance” attribute has
long-term assets. He et al. [36] have a similar definition. In general,
such functions as capital support, resource allocation, and enter-
the current research mainly defines renewable energy investment
prise supervision. Capital support means that, through absorbing
from the perspective of investment subjects. In summary, this pa-
idle funds from the society, the financial system can provide
per defines “renewable energy investment efficiency” as the in-
financing services to enterprises and improve the financing envi-
vestment efficiency of renewable energy enterprises from the
ronment. The resource allocation function means that the financial
perspective of microeconomic agencies.
system can guide the flow of financial resources from inefficient
The Pecking Order Theory of Myers [37] indicates that, with the
industries to high-efficiency industries, realizing the effective
existence of asymmetric information and agency problems, man-
allocation and maximum utilization of resources. The enterprise
agers’ financing preferences are endogenous financing, debt
supervision function refers to the financial system providing
financing, and equity financing. As far as the economic reality of
financing services for enterprises, which makes them responsible
China is concerned, bank credit accounts for the largest proportion
for supervising and controlling enterprises. From the perspective of
in debt financing. Therefore, based on the perspective of the
credit support, financial institutions supervise the financial oper- “financing investment e
” chain, this paper attempts to study the
ation of enterprises in the pre-loan, in-loan, and post-loan process,
influence of bank credit on renewable energy investment efficiency.
which improves investment efficiency and increases enterprise
Moreover, due to the existence of agency conflicts, asymmetric
value. However, on the one hand, the renewable energy industry
information, financing constraints, and soft budget constraints,
has such characteristics as high initial investment requirements
enterprises’ investment will deviate from the optimal investment
and a long time for recuperation; on the other hand, as “economic
amount, which will result in low investment efficiency, while debt
man”, the aim of a bank is interest maximization. Therefore, in the
has contingent governance function [7,38]. As the main source of
early stage of renewable energy development, financing constraints
corporate debt financing, bank credit can, through four internal are inevitable.
mechanismsddelivering important information, reducing agency
Second, the “green” attribute requires that the green financial
costs, easing financing constraints, and hardening budget con-
development not only focuses on environmental protection, energy straintsdalleviate investment shortage and control over-
conservation, clean energy, green transportation, and green
investment and thus improve renewable energy investment
buildings but also fully considers corporate social responsibility and efficiency.
environmental performance in investment and financing services
Dealing with these mechanisms in order: First, convey impor-
to promote green industry development. This attribute aims to
tant information. Information asymmetry is one of the important
promote renewable energy development from both the source and
reasons for the low investment efficiency of enterprises. Compared
the terminus of the industrial chain and then improve investment
with general creditors, bank institutions have information advan-
efficiency of renewable energy enterprises through financing re-
tages and can obtain important private information of enterprises.
striction and final demand of industry change. Third, theoretically,
Therefore, bank credit issuance plays an important signaling role
green financial development plays a positive role in promoting
for external investors. Second, reduce agency costs. The principal-
enterprise investment efficiency, but the influences of “green” and
agent problem mainly stems from the separation of enterprises’
“finance” attributes on financing are opposite under certain cir-
ownership and control power. Due to the interest conflicts between
cumstances. In the early stage of renewable energy industry
managers and shareholders, managers deliberately invest in low-
development, the credit constraint caused by the “finance” attri-
income projects to avoid returning free cash flow to shareholders,
bute may offset the improvement effect of its “green” attribute on
which leads to over-investment. However, bank credit has a con-
renewable energy investment efficiency. Therefore, green finance
trolling function, which can constrain adverse selection and moral
has an uncertain influence on the investment efficiency of renew-
hazard behaviors of managers to a certain extent. Third, ease
able energy enterprises. Fig. 1 shows the theoretical relationship
financing constraints. Due to the information asymmetry between
between green financial development, bank credit, and renewable
the investing and financing parties and the blocking of financing energy investment efficiency.
channels in the financial market, most enterprises are facing
financing constraints [39,40]. Bank credit provides enterprises with 3. Model, variables and data
investment funds, easing financing constraints and improving their
under-investment. Fourth, harden budget constraints. Before the 3.1. Basic model
transformation of economic development model, the state-owned
bank credit is interfered with by the administrative instructions
Based on the theoretical analysis, bank credit plays an inter-
of government, resulting in soft budget constraints of enterprises,
mediary role in the impact of green financial development on
especially state-owned enterprises [41]. With the transformation
renewable energy investment efficiency. In view of this, this paper
and development of economic model, the degree of soft budget
intends to establish a recursive model to analyze whether green
constraint has been reduced, which will harden the budget
financial development can affect renewable energy investment
constraint of state-owned banks on enterprises, especially state-
efficiency and then test the existence of a bank credit intermediary
owned enterprises [42]. The hardening of budget constraints will
effect. In addition, the bank credit channel includes short-term and
strengthen the supervision and control function of banks, restrain
long-term channels. To test the differences of credit channel func-
over-investment, and improve investment efficiency.
tions, models are established respectively, as shown in (1) (3).
Further, green finance has the dual attributes of “green” and
IE it¼ b0 þ b1GFit þ b2ROEit þ b3Size it þ b4CFit þ b5Ageit þ b6ADMit þ b7Majorit X X (1) þb Year Ind 8Growth it þ þ þ w
L. He et al. / Renewable Energy 143 (2019) 974e984 977 ĀGreenāat ribute Supportgreenindustry Contingentgovernance Eliminate inefficientindustry Deliverimportantinformation G i r n e ĀFinanceāattribute v R e e e n Under-investment s n f B t i L m e n a Capi tal supp ort Reduceagencycosts w a o n e n n k a n g b c t e - c l t e e d r e e f e e R esour ce alloc ation r d f n v m i ic e e t i r l e g o Easefinancingconstraints n y p c m Over-investment y En terp r ri se supervi sion ent ĀEconomicmanā S Hardenbudgetconstraints te h r o m rt Financing c onst rain t s -
Characteristics ofrenewable energy industry Macro-financialenvironment Creditfinancingchannels Microscopiceconomicsubject
Fig. 1. Theoretical relationship between green financial development, bank credit, and renewable energy investment efficiency.
DEBTitðorSTLitorLTLitÞ ¼ c0 þ c1GF X it þ c2 ROE
Xit þ c3 Sizeit þ c4CFit þ c5 Ageit (2)
þc 6Growthit þ c7 Tangibleitþ Year þ Ind þ s
IEit ¼ 40 þ 4 1 GFit þ 4 2Debt itðorSTLitorLTLitÞ þ 43ROEit þ 4 4Sizeit þ 45CFit X X (3)
þ46Ageit þ 4 7ADMit þ 4 8Majorit þ 4 9Growthit þ Year þ Ind þ m
where i is the enterprise, t is the year, IE is renewable energy in-
vestment efficiency, GF is green financial development level. DEBT,
OVERIEit ðorUNDERIEitÞ ¼ h0 þ h1 GFit þ h2ROEit þ h3 Sizeit
STL, and LTL are total bank loans, short-term bank loans, and long-
þh 4CFit þ h5 Ageit þ h6 ADMit þ h7Majorit þ h8 Growthit X X (4)
term bank loans, respectively. Referring to the research of He et al. þ Year þ Ind þ z
[43]; Jiang et al. [44]; this paper introduces the rate of return on
equity, ROE, enterprise scale, SIZE, cash flow, CF, listed years, AGE,
management expense ratio, ADM, major shareholder control,
DEBTitðorSTLitorLTLitÞ ¼ g0 þ g1 GFit þ g2ROEit þ g3Sizeit X
Major, enterprise growth, Growth, and tangible, Tangible, as control
þg4CFit þ g5 Ageitþg6 Growthit þ g7 Tangibleit þ Year (5)
variables. Year and Ind represents the year and industry, respec- X þ Ind þ 6
tively. According to the recursive intermediary effect test method
proposed by Baron and Kenny [45] and Wen et al. [46]; we first
estimate model (1). If the coefficient b1 is significant, it shows that
OVERIEit ðorUNDERIEitÞ ¼ t0 þ t1GF it þ t2Debtitðor STL itorLTLitÞ
green financial development has an influence on investment effi-
þt 3ROEitþt4 Sizeit þ t5CFit þ t6Age it þ t7 ADMit þ t8 Majorit
ciency. Then we estimate model (2). If the coefficient c X X 1 is signifi- þt Year Ind
cant, it shows that green financial development can impact bank 9Growthit þ þ þ n
credit. In addition, we estimate model (3). If the coefficients 41 and (6)
42 are both significant and the absolute value of 41 is smaller than
b1, this shows that the partial intermediary effect of bank credit
channels exists. If the coefficient 41 is insignificant, while the co-
efficient 42 is significant, this indicates that bank credit channels
3.2. Variables and data selection
have full intermediary effect. Further, considering the existence of
under-investment and over-investment, the original sample is
Variables and indicators in this paper are shown in Table 1.
divided into an over-investment group and an under-investment
This paper takes renewable energy enterprises in the Chinese A
group according to whether investment efficiency is either
share market as a sample, with the sample range being from 2011 to
greater or less than 0. Based on these, Models (4)e(6) are estab-
2016. Due to the lack of an accurate definition of the renewable
lished, where OVERIE and UNDERIE represent over-investment and
energy industry in the Chinese listed enterprises” categories, we
under-investment, respectively.
take enterprises whose main business is related to renewable en-
ergy as samples. According to “The Industry Classification Guide-
lines” issued by China Securities Regulatory Commission in 2012,
we choose the “Electricity, Heat, Gas, and Water Production and 978
L. He et al. / Renewable Energy 143 (2019) 974e984 Table 1
Definition and description of variables. Symbol Variables Definition Inew New investment
(cash paid for the purchase and construction of fixed assets, intangible assets and other long-term assets - cash recovered from
disposal of fixed assets, intangible assets and other long-term assets)/total assets at the beginning of the year Q Investment opportunity
Tobin Q, Tobin Q¼(total stock market value þ total debt at the end of the year)/total assets at the end of the year Lev Asset-liability ratio
Total debt at the end of the year/total assets at the end of the year, which also indicates the financing structure. Cash Cash
(Cash at the end of the year þ short-term investment)/total assets at the end of the year Age Listed years
Natural logarithm of the enterprises’ listing age of at the end of the year Size Enterprise scale
Natural logarithm of the enterprises’ total assets at the end of the year Ret Stock yield
Annual return on enterprises’ stock IE
Renewable energy investment Difference between actual newly increased investment and reasonably expected investment, namely, the residual of model (1). efficiency OVERIE Over-investment
The amount that actual newly increased investment exceeds reasonably expected investment, which means that the residual of model (1) is greater than 0. UNDERIE Under-investment
The amount that actual newly increased investment is lower than reasonably expected investment, which means that the
residual of model (1) is less than 0. GF
Green financial development Calculated according to the measurement system of China’s green finance development degree level Debt Loan ratio
(Short-term loans at the end of the year þ non-current liabilities due within one year þ long-term loans)/total assets at the end of the year STL Short-term loan ratio
(Short-term loans at the end of the year þ non-current liabilities due within one year)/total assets at the end of the year LTL Long-term loan ratio
long-term loans/total assets at the end of the year ROE The rate of return on equity Net income/ownership interest CF Cash flow
Net operating cash flow/total assets at the beginning of the year ADM Management expense ratio
Management expenses/main business income Major Major shareholder control
The shareholding ratio of the largest shareholder Growth Growth
Sales growth rate¼(Operating income of this year - operating income of last year)/operating income of last year Tangible Tangible
Net fixed assets at the end of year/total assets at the end of year Year Year Annual dummy variable Ind Industry
Industrial dummy. According to the main businesses of renewable energy listed enterprises, renewable energy industry is
divided into wind energy, solar energy, water energy, geothermal energy, biomass energy and other industries.
Supply Industry (Industry codes are D44, D45, and D46, respec-
4. Measurement of green financial development degree and
tively)” and the “Ecological Protection and Environmental Man-
renewable energy investment efficiency
agement Industry (Industry code is N77)” and select sample
enterprises in accordance with the following principles: (1) Include
4.1. Measurement of green financial development degree
enterprises that were listed in Chinese A share market before
December 31, 2010. (2) Exclude enterprises that belong to special
According to the definition of green finance in this paper, from
treatment and particular transfer categories. (3) To avoid the in-
the perspective of financial institutions, the Chinese green financial
fluence of issuing either domestic foreign capital stocks or overseas
development degree is measured on the basis of green credit, green
shares on enterprises” investment behavior, the sample does not
securities, green insurance, green investment, and carbon finance.
contain enterprises that issue B, H, and N shares. (4) Remove some
Referring to the Chinese green financial development measure-
enterprises with incomplete sample data. Based on the above
ment system established by Zeng et al. [32] and considering the
principles, 141 enterprises were selected. Further, 5% Winsorization
validity and availability of data, the index system is constructed as
is applied to all continuous variables of enterprises to reduce the shown in Table 3.
impact of outliers. Data come from the CSMAR database and the
In Table 3, the first-class index equals to the arithmetic average
CCER database. Table 2 shows a statistical description of the original
value of the corresponding second-class index. data of variables.
Specifically, (1) green credit, which is measured from two Table 2
Descriptive statistics of variables. Variables Mean Median Maximum Minimum Std. Dev. Observations Inew 0.0833 0.0526 2.6154 0.1357 0.1318 910 Q 3.5635 1.6797 53.5115 0.3705 5.4449 910 Lev 0.5264 0.5336 3.2619 0.0123 0.23399 910 Cash 0.2042 0.1312 3.4970 0.0457 0.2791 910 Age 2.2678 2.4849 3.2958 0.0000 0.7370 910 Size 22.4607 22.2575 26.4580 19.6255 1.3387 910 Ret 0.1369 0.0295 2.6574 0.6899 0.4768 910 Debt 0.2619 0.2485 1.3093 0.0000 0.1911 829 STL 0.1502 0.1348 1.3093 0.0000 0.1193 829 LTL 0.1117 0.0475 0.7297 0.0000 0.1473 829 ROE 0.0167 0.0602 1.8771 20.7367 0.7763 829 CF 0.0400 0.0512 0.7425 7.1302 0.2777 829 ADM 0.0857 0.0715 5.2077 0.0022 0.1896 829 Major 35.0742 33.2300 85.2300 6.6100 15.9321 829 Growth 18.1821 0.0702 14883.0600 0.9167 516.9037 829 Tangible 0.3170 0.2456 1.4650 3.77E-05 0.2222 829
L. He et al. / Renewable Energy 143 (2019) 974e984 979 Table 3
Measurement system of green financial development degree in China. The first-class index The second-class index Calculation description and the weight Green credit (45%) Ratio of green credit
Total green credit of five representative banksa/Total loans of five representative banks
Ratio of interest expense in high energy-consumption industries Interest expense of six high energy-consumption industries/Total interest expense of industries
Green securities (25%) Ratio of environmental protection companies’ market value
Total market value of environmental protection companies/Total market value of A-shares
Ratio of high energy-consumption companies’ market value
Total market value of six high energy-consumption industriesb/Total market value of A-shares
Green insurance (15%) Ratio of agricultural insurance scale
Agricultural insurance expenditure/Total insurance expenditure
Loss ratio of agricultural insurance
Agricultural insurance expenditure/Agricultural insurance income Green investment
Ratio of environmental protection public expenditure
Fiscal expenditure of energy-saving and environmental-protection industries/ (10%) Total fiscal expenditure
Ratio of foreign direct investment (FDI) of energy-saving and
Foreign direct investment of energy-saving and environmental-protection
environmental-protection industries
industries/Total foreign direct investment
Ratio of investment governing environmental pollution
Investment of governing environmental pollution/GDP Carbon finance (5%)
Ratio of trading volume of Clean Development Mechanism
Percentage of Chinese Clean Development Mechanism project transactions in all project
Clean Development Mechanism projects
a The representative banks are the five biggest banks with total asset in China. They are Industrial and Commercial Bank of China, the Bank of China, the China Construction
Bank, the Bank of Communications, and the China Development Bank. These banks’ assets account for more than 40% of the banking industry; thus, the five banks are relatively representative.
b According to the “Chinese 2010 National Economic and Social Development Statistics Report”, the six major high energy-consumption industries include the chemical
industry of raw materials and chemical products manufacturing; the non-metallic mineral products industry; the ferrous metal smelting and rolling processing industry; the
non-ferrous metal smelting and rolling processing industry; the oil processing; coking, and nuclear fuel processing industry; and the electricity and heat production and supply industry.
aspects, the proportion of green credit and the interest expenditure
in high energy-consumption industries. (2) The green securities 107.00 106.58
index reflects the financial support effect of the capital market for 106.00
environmental protection and high energy-consumption enter- 105.47
prises. (3) Green insurance. The environmental protection liability 105.00
insurance for Chinese enterprises has been implemented since 104.59 104.32
2013, which means that there is a lack of reliable data. Thus, the 104.00
agricultural insurance development is used to measure approxi- 103.00
mately the development of green insurance. (4) Green investment
development is measured from three aspects: public expenditure 102.00
on energy conservation and environmental protection, foreign
direct investment (FDI), and investment in governing environ- 101.00 100.68
mental pollution. While the classification of environmental pro- 100.00 100.00
tection enterprises lacks industry standards, this paper selects the 2011 2012 2013 2014 2015 2016 Year
ecological protection and environmental governance enterprises in
the China Securities Regulatory Commission Industry Classification
Fig. 2. Green financial development degree in China in 2011e2016.
for measurement. As FDI in energy-saving and environmental
protection industries lacks corresponding caliber data, this paper
uses FDI of water conservancy, environment, and public facilities
approximately 4%, entering a rapid growth phase. However, in
management industries released by Chinese National Bureau of
2014, the green financial development degree declined slightly.
Statistics as a substitute. (5) Carbon finance represents the inter-
This may be due by market adjustments and other reasons, such as
national influence of Chinese green financial development.
changes of the green credit cycle and the green securities market. In
Overall, while, on the one hand, it difficult to accurately measure
2014e2016, the annual growth rate of Chinese green financial
green financial development degree because of the development of
development index was around 1%, which represents a decline.
various green financial markets is not mature and relevant data are
Overall, the degree of green financial development in China is
lacking, on the other hand, the relevant statistical data cover a short
relatively low at present. From the practical point of view, this may
period of time. Based on the actual situation of China, considering
be mainly due to the uncertain development prospect of green
the availability of data, we determined 2011 as the base year, and
securities, green investment, and other markets; the low level of
our sample range was 2011e2016. The data come from the website
government support; and the corresponding adjustment of finance
of National Bureau of Statistics of China, the website of China Clean
development due to the economic structure adjustment.
Development Mechanism, the CCER database, and annual reports
and social responsibility reports of the banks mentioned above.
Based on these data, we have calculated the Chinese green financial
4.2. Measurement of renewable energy investment efficiency
development index from 2011 to 2016, as shown in Fig. 2.
It can be seen that green financial development in China has
Referring to the investment efficiency model proposed by
generally increased, while the growth rate is relatively slow. In
Richardson [47] this paper quantifies enterprise’s annual over- 2011
investment and under-investment levels. Yu et al. [48] improved
e2012, the annual growth rate was approximately 1%, which is relatively low. In 2012
this model and used a panel data fixed effect model to estimate the e2013, the annual growth rate was
optimal investment level of enterprises. The residual in model (7) 980
L. He et al. / Renewable Energy 143 (2019) 974e984 Table 4
generally low in the research period, while there is obvious fluc-
Regression results of renewable energy investment efficiency model.
tuation, with the main range of changes being 0.190 to 0.340. Variables Coef
Moreover, the gap of investment ef ficient Standard deviation T value P value
ficiency between enterprises is remarkable. Intercept 0.0591 0.0466 1.2682 0.2051 Qit1 0.0005 0.0006 0.8763 0.3811 Lev 0.0189 0.0115 1.6471 0.0999* it1
5. Estimation and results analysis Cash 0.0310 0.0149 2.0780 0.0380** it1 Ageit1 0.0099 0.0032 3.0744 0.0022***
To analyze the intermediary paths along which green financial Size 0.0014 0.0021 0.6758 0.4993 it1  
development affects renewable energy investment ef Ret 0.0050 0.0055 0.9167 0.3596 ficiency it1 Inew 0.4884 0.0365 13.3879 0.0000***
through bank credit, models (1) it1
e(3) are estimated based on the R-squared 0.3486 Sum squared resid 1.7401
total sample of renewable energy investment efficiency, the over- F-statistic 24.4886 Durbin-Watson stat 1.9474
investment group, and the under-investment group, respectively. Prob (F-statistic) 0.0000 S.E. of regression 0.0473
The regression results are shown in Tables 6e8.
Note: *, **, and *** indicate significance levels of 0.1, 0.05, and 0.01, respectively (the As can be seen from Table 6: same below).
1) The impact of bank loans on renewable energy investment ef-
indicates enterprises” investment efficiency. If the residual is
ficiency is insignificant (column 3); thus the intermediary effect
greater than 0, enterprises are over-investing. When the residual is
is untenable. Meanwhile, the direct effect of green financial
less than 0, enterprises are underinvesting.
development on renewable energy investment efficiency is
significant, and the coefficient is 0.0017, which shows that green Inew
financial development increases the fluctuation of renewable
it ¼a 0þa 1Q it1 þa 2Levit1þ a3Cashit1 þ a4 Ageit1 X X
energy investment efficiency and reduces renewable energy
þ a5 Sizeit1þ a6Retit1þ a7 Inewit1 þ Year þ Indþ ε
investment efficiency to some extent. In addition, the coefficient (7)
of green financial development on bank loans is 0.0146, which
indicates that green financial development inhibits the bank
where i represents the renewable energy listed enterprises, t
credit investment in renewable energy enterprises in the
represents the year, and ε is the random disturbance term. The
research period. The reason lies in the fact that, as pointed out in
definitions of related variables are shown in Table 1. Based on the
the theoretical analysis, renewable energy enterprises have
above analysis, a unit root test was conducted, and the results show
financing constraints in the early development stage, and the
that the series are stationary at 1% of the significant level. According
financing constraints caused by the “finance” attribute of green
to the co-integration test results, there is a long-term equilibrium
financial development may offset the improvement effect of its
relationship among related variables. Besides, Hausman test results
“green” attribute on renewable energy investment efficiency,
show that a random effect panel model should be adopted. Then,
which has a generally inhibiting effect on renewable energy
the model (7) was estimated using the Least Square Regression investment efficiency.
method. The regression results are shown in Table 4.
2) The effect of green financial development and short-term loans
As can be seen from Table 4, Levit1, Cash it1, Ageit1, and
on renewable energy investment efficiency is significant (col-
Inewit1 are all significant at the 10% level, and the model is sig-
umns 4e6); this shows that a partial intermediary effect exists.
nificant. Therefore, we use the residual value of the investment
According to the estimation method of [46], the intermediary
efficiency model to represent renewable energy investment effi-
effect of a short-term loan is 0.00030 (0017e0.0014), which
ciency, IE. If the residual value is greater than 0, it indicates
accounts for 17.65% (0.0003/0.0017) of the total effect. The
renewable energy over-investment, expressed as OVERIE. The
specific path is that green financial development reduces the
greater the positive value, the more serious the over-investment.
short-term loan amount for renewable energy enterprises,
When the residual value is less than 0, enterprises are under-
which reduces the power of the contingent governance function
investing, expressed as UNDERIE. The smaller the negative value,
of short-term loans for renewable energy investment, thus
the more serious the under-investment. Due to the missing values
inhibiting renewable energy investment efficiency. In practice,
of enterprises in the research period, there are missing residual
the “green” attribute of green finance is mainly embodied in two
values, and we finally obtain 796 samples of 141 enterprises in
aspects: supporting green industries and eliminating inefficient
2011e2016. Table 5 is a statistical description of investment effi-
industries. Renewable energy enterprises belong to green in-
ciency. As can be seen from Table 5, the proportion of renewable
dustry, but the industry characteristics hinder short-term effi-
energy under-investment is 62.81%, which is a relatively large, and
ciency and lack market competitiveness. Moreover, green
which shows that Chinese renewable energy enterprises are
financial development in China is still in its initial stage, with a
generally underinvesting. This result is consistent with the findings
relatively slow development speed and a limited guiding role in of Wu et al. [49].
resource allocation. This results in negative effects on short-
Furthermore, Fig. 3 is the change of renewable energy invest- term loans.
ment values for 141 enterprises in 2011e2016. It can be seen that
3) The effect of a long-term loan on renewable energy investment
investment efficiency of 141 renewable energy listed enterprises is
efficiency is insignificant (column 9); thus the intermediary Table 5
Descriptive statistics of renewable energy investment efficiency. Variables Mean Median Maximum Minimum Std. Dev. Observations IE 0.0000131 0.0157088 2.455006 0.1836559 0.1200028 796 OVERIE 0.0720604 0.0379021 2.455006 0.0003358 0.1703705 296 UNDERIE 0.0426389 0.0379549 0.0001873 0.1836559 0.0296862 500
Note: The renewable energy investment efficiency value is generally small; thus, we choose 7 digits after the decimal point for measurement.
L. He et al. / Renewable Energy 143 (2019) 974e984 981
Fig. 3. The renewable energy investment efficiency value in China in 2011e2016. Note: the number on the Y axis indicates 141 listed renewable energy enterprises. Table 6
Intermediary effect test results of green financial development, bank credit, and renewable energy investment efficiency. Dependent variable Bank loan Short-term loan Long-term loan (1)IE (2)Debt (3)IE (4)IE (5)STL (6)IE (7)IE (8)LTL (9)IE Intercept 0.5990*** (0.0000) 0.5839*** 0.5923*** 0.5990*** (0.0000) 0.8783*** 0.5573*** 0.5990*** (0.0000) 0.4142*** 0.5884*** (0.0030) (0.0000) (0.0000) (0.0000) (0.0014) (0.0000) GF 0.0017*** (0.0003) 0.0146*** 0.0016*** 0.0017*** (0.0003) 0.0080*** 0.0014*** 0.0017*** (0.0003) 0.0071*** 0.0021*** (0.0000) (0.0004) (0.0000) (0.0025) (0.0000) (0.0000) Debt 0.0097 (0.3398) STL 0.0478** (0.0361) LTL 0.0514 (0.1143) ROE 0.0040 (0.9012) 0.2510*** 0.0002 0.0040 (0.9012) 0.1734*** 0.0078 0.0040 (0.9012) 0.1180** 0.0151 (0.0000) (0.9935) (0.0000) (0.6291) (0.0200) (0.4889) Size 0.0182*** (0.0000) 0.0394*** 0.0186*** 0.0182*** (0.0000) 0.0024 0.0181*** 0.0182*** (0.0000) 0.0500*** 0.0158*** (0.0000) (0.0000) (0.6449) (0.0000) (0.0000) (0.0000) CF 0.1678*** (0.0000) 0.1500** 0.1684*** 0.1678*** (0.0000) 0.1750*** 0.1606*** 0.1678*** (0.0000) 0.0575*** 0.1551*** (0.0140) (0.0000) (0.0001) (0.0000) (0.0021) (0.0000) Age 0.0081 (0.2485) 0.0600*** 0.0076 0.0081 (0.2485) 0.0381*** 0.0067 0.0081 (0.2485) 0.0168* 0.0093 (0.0000) (0.2979) (0.0001) (0.3728) (0.0992) (0.1673) ADM 0.2557*** (0.0000) 0.2479*** 0.2557*** (0.0000) 0.2374*** 0.2557*** (0.0000) 0.2772*** (0.0000) (0.0000) (0.0000) Major 0.0002* (0.0776) 0.0002*** 0.0002* (0.0776) 0.0002*** 0.0002* (0.0776) 0.0002** (0.0074) (0.0070) (0.0105) Growth 0.0146** (0.0332) 0.0047 0.0144* 0.0146** (0.0332) 0.0026 0.0146* 0.0146** (0.0332) 0.0004 0.0151** (0.6482) (0.0587) (0.7342) (0.0550) (0.9443) (0.0303) Tangible 0.2853*** 0.0665*** 0.2028*** (0.0000) (0.0098) (0.0000) R 2 0.1601 0.2651 0.1606 0.1601 0.1289 0.1655 0.1601 0.3375 0.1655 F-value 8.7259 18.3030 8.2562 8.7259 7.5120 8.5631 8.7259 25.8563 8.5614
effect is untenable. Meanwhile, the direct effect coefficient of As can be seen from Table 7:
green financial development on renewable energy investment
efficiency is 0.0021, which increases the fluctuation of renew-
1) Only the effect of green financial development on renewable
able energy investment efficiency. Additionally, green financial
energy investment efficiency is insignificant, and the complete
development inhibits the long-term loans of renewable energy
intermediary effect of bank loans exists (column 3). Green
enterprises to a certain extent, with a coefficient of 0.0071. The
financial development reduces the amounts of bank loans for
reason for this is the same as with the short-term mediation
renewable energy enterprises, which eases the renewable en- effect. ergy over-investment. 982
L. He et al. / Renewable Energy 143 (2019) 974e984 Table 7
Intermediary effect test results of green financial development, bank credit, and renewable energy over-investment. Dependent variable Bank loan Short-term loan Long-term loan (1)OVERIE (2) (3)OVERIE (4)OVERIE (5) (6)OVERIE (7)OVERIE (8) (9)OVERIE Debt STL LTL Intercept 0.0099 0.9719***(0.0022) 0.0347 0.0099 1.0643*** 0.0543* 0.0099 0.0542 0.0027 (0.7310) (0.7737) (0.7310) (0.0000) (0.0527) (0.7310) (0.8667) (0.9841) GF 0.0006* 0.0188*** 9.67E-05 0.0006* 0.0099*** 0.0002 0.0006* 0.0085*** 0.0004 (0.0785) (0.0000) (0.9331) (0.0785) (0.0000) (0.5387) (0.0785) (0.0017) (0.7491) Debt 0.0315* (0.0559) STL 0.0356* (0.0977) LTL 0.0267 (0.2455) ROE 0.0377 0.2695** 0.0186 0.0377 0.1647** 0.0250 0.0377 0.0871 0.0287 (0.3416) (0.0192) (0.6498) (0.3416) (0.0129) (0.5354) (0.3416) (0.3492) (0.5040) Size 0.0056*** 0.0437*** 0.0034 0.0056*** 0.0009 0.0049** 0.0056*** 0.0382*** 0.0036 (0.0004) (0.0000) (0.1582) (0.0004) (0.8907) (0.0037) (0.0004) (0.0000) (0.2045) CF 0.0775* 0.0777 0.0649* 0.0775* 0.1499*** 0.0743* 0.0775* 0.0501 0.0654 (0.0692) (0.4831) (0.0853) (0.0692) (0.0016) (0.0886) (0.0692) (0.5006) (0.1185) Age 0.0105*** 0.0334* 0.0086** 0.0105*** 0.0010 0.0086* 0.0105*** 0.0327* 0.0087* (0.0069) (0.0682) (0.0488) (0.0069) (0.1915) (0.0757) (0.0069) (0.0601) (0.0610) ADM 0.1154* 0.1782** 0.1154* 0.1529** 0.1154* 0.1497* (0.0525) (0.0191) (0.0525) (0.0186) (0.0525) (0.0790) Major 0.0003** 0.0003* 0.0003** 0.0003** 0.0003** 0.0003* (0.0325) (0.0572) (0.0325) (0.0269) (0.0325) (0.0655) Growth 0.0113 0.0092 0.0123* 0.0113 0.0140 0.0110 0.0113 0.0050 0.0128* (0.2521) (0.6181) (0.0893) (0.2521) (0.3204) (0.2562) (0.2521) (0.7065) (0.0895) Tangible 0.3089*** 0.0792** 0.1885*** (0.0000) (0.0152) (0.0000) R2 0.1186 0.3966 0.1353 0.1186 0.1545 0.1306 0.1186 0.3885 0.1296 F-value 2.3453 11.4624 2.4088 2.3453 3.1852 2.3117 2.3453 11.0791 2.2923 Table 8
Intermediary effect test results of green financial development, bank credits and renewable energy under-investment. Dependent variable Bank loan Short-term loan Long-term loan (1)UNDERIE (2) (3) (4) (5) (6) (7) (8) (9) Debt UNDERIE UNDERIE STL UNDERIE UNDERIE LTL UNDERIE Intercept 0.5086*** 0.1730 0.4869*** 0.5086*** 0.7591*** 0.4719** 0.5086*** 0.6334*** 0.5058*** (0.0000) (0.5242) (0.0000) (0.0000) (0.0000) (0.0000) (0.0000) (0.0001) (0.0000) GF 0.0032** 0.0112*** 0.0027*** 0.0032** 0.0071*** 0.0029*** 0.0032** 0.0057*** 0.0031*** (0.0000) (0.0000) (0.0000) (0.0000) (0.0000) (0.0000) (0.0000) (0.0000) (0.0000) Debt 0.0315*** (0.0000) STL 0.0462*** (0.0000) LTL 0.0107 (0.4044) ROE 0.0083 0.2379*** 0.0064 0.0083 0.1775*** 0.0038 0.0083 0.1350*** 0.0057 (0.5413) (0.0009) (0.6555) (0.5413) (0.0000) (0.7943) (0.5413) (0.0007) (0.7047) Size 0.0055*** 0.0426*** 0.0068*** 0.0055*** 0.0006 0.0054*** 0.0055*** 0.0536*** 0.0059*** (0.0000) (0.0000) (0.0000) (0.0000) (0.9238) (0.0001) (0.0000) (0.0000) (0.0001) CF 0.0422*** 0.2036** 0.0440*** 0.0422*** 0.1830*** 0.0346** 0.0422*** 0.0458 0.0461*** (0.0072) (0.0194) (0.0063) (0.0072) (0.0025) (0.0349) (0.0072) (0.3405) (0.0067) Age 0.0070*** 0.0594*** 0.0093*** 0.0070*** 0.0331*** 0.0086*** 0.0070*** 0.0204** 0.0074*** (0.0016) (0.0004) (0.0001) (0.0016) (0.0000) (0.0002) (0.0016) (0.0466) (0.0016) ADM 0.0536 0.0283 0.0536 0.0361 0.0536 0.0493 (0.1016) (0.4062) (0.1016) (0.2992) (0.1016) (0.1650) Major 0.0001 0.0002* 0.0001 0.0001 0.0001 0.0001 (0.1266) (0.0915) (0.1266) (0.1572) (0.1266) (0.1381) Growth 0.0064** 0.0005 0.0057* 0.0064** 0.0066 0.0061** 0.0064** 0.0007 0.0063** (0.0322) (0.9736) (0.0651) (0.0322) (0.6117) (0.0441) (0.0322) (0.9322) (0.0420) Tangible 0.3435*** 0.0802* 0.2117*** (0.0000) (0.0515) (0.0000) R2 0.3922 0.3014 0.4142 0.3922 0.1335 0.4141 0.3922 0.3978 0.3907 F-value 18.2974 13.0243 18.8931 18.2974 4.6523 18.8860 18.2974 19.9429 17.1349
2) Short-term loans have a full intermediary effect (column 6). The
with the intermediary effect of bank loans. By contrast, the
results suggest that green finance curbs renewable energy
intermediary channel of a short-term loan is more effective in
overinvestment by reducing short-term loans. This is consistent
inhibiting renewable energy over-investment (columns 3 6). e
L. He et al. / Renewable Energy 143 (2019) 974e984 983
3) The effect of long-term loans on renewable energy over-
extent. The full intermediary effect of bank loans and short-term
investment is insignificant (column 9), and the intermediary loans is significant.
effect is untenable. Meanwhile, as can be seen from columns (7)
In practice, to improve the positive promotion effect of green
and (8), the direct effect of green financial development on
financial development on renewable energy investment efficiency,
renewable energy over-investment is significant, and the coef-
the government, financial institutions, and enterprises must coor-
ficient is 0.0099. The results reveal that green financial
dinate with each other. The key point is to give play to the guiding
development can reduce renewable energy over-investment to
role of green finance in resource allocation. The government should
a certain extent and improve renewable energy investment ef-
both construct and consummate the green financial system and
ficiency. Moreover, green financial development can reduce the
actively promote green financial development. On the one hand,
long-term loans of renewable energy enterprises with over-
through legislative means to build a green financial system through
investment problems. This is in line with the theoretical
legislation; on the other hand, to support the green industry expectation.
through Financial, Monetary and Environmental Policies or Green
funds, and then to promote green finance through green industry. As can be seen from Table 8:
Financial institutions should actively produce innovative green
financial products and support the development of renewable en-
1) The coefficients of green financial development and bank loans
ergy enterprises in multiple ways. In addition to green credit, green
on investment efficiency are all significant (columns 1e3), and
bonds, green insurance and specific financing tools for renewable
the partial intermediary effect of bank loans exists. The inter-
energy enterprises should be vigorously developed. Besides, policy
mediary effect is 0.0005 (0.0032e0.0027), which accounts for
financial institutions should also give full play to their supporting
15.63% (0.0005/0.0032) of the total effect. Specifically, green
role in renewable energy enterprises development. As for renew-
financial development reduces bank loans for renewable energy
able energy enterprises, they should strengthen their internal
enterprises, while bank loans have a negative effect on renew-
management, improve competitiveness in the financing market;
able energy under-investment. Therefore, green financial
especially for enterprises under-investment, developing financing
development cannot alleviate under-investment of renewable
channels is the key to improve investment efficiency.
energy. This is similar to the results in the whole sample.
2) The coefficients of green financial development and short-term Conflicts of interest
loans are significant (columns 4e6), which indicates that a
partial intermediary effect of short-term loans exists. Green
The authors declare no conflicts of interest.
financial development has a positive effect on the investment
shortage by reducing the short-term loan amount of renewable Acknowledgments
energy enterprises. The intermediary effect of bank loans is
0.0003 (0.0032e0.0029), which accounts for 9.38% (0.0003/
The authors are grateful for the National Natural Science
0.0032) of the total effect. In contrast, the partial intermediary
Foundation of China (Grant No.71874185), the Ministry of Educa-
effects of bank loans are greater than are those of short-term
tion of Humanities and Social Science Project of China (Grant No.
loans. Specifically, the effect of green finance development on
16YJAZH015) and the National Natural Science Foundation of China
bank loans is greater than is its effect short-term loans. More- (Grant No. 41801118).
over, the negative effect of bank loans on renewable energy
under-investment is greater than is that of short-term loans. References
3) The effect of long-term loans on renewable energy under-
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