Institute of Chinese Financial Studies, Southwestern University of Finance and Economics, Chengdu, Sichuan, China.
School of Economics, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu, China.
PLoS One. 2022 Nov 10;17(11):e0277569. doi: 10.1371/journal.pone.0277569. eCollection 2022.
China has been exploring a sustainable development path that harmonizes economic growth and environmental protection, targeting to build a beautiful China. The role of green finance in adjusting the misallocation of financial resources and leading the green sustainable development of the real economy is receiving increasingly more attention. Currently, green credit accounts for more than 90% of the total green finance funding in China and constitutes the most significant component of the green finance matrix. Whether green credit effectively promotes the green and sustainable development of the regional economy largely determines the success of China's economic green transformation.
Existing studies of green credit mainly focus on its influences on financing, investment, and emission reduction of environmental pollution industries or companies. Extending the literature by exploring whether green credit is effective in promoting green sustainable development and what impact green credit exerts on the upstream (energy inputs), midstream (technological innovation), and downstream (pollution outputs) stages of the green sustainable development value chain, is the leading research objective of this paper.
This paper discusses the impact of green credit on green sustainable development based on city panel data from 2012 to 2019. The level of green sustainable development is calculated by the GML index based on SBM directional distance function. The city-level green credit scale is calculated from the green credit issued by banks, weighted by the density of bank branches in a city. Synthetic control methods are employed in the robustness analysis to reduce the impact of endogeneity issues.
The results of this paper indicate that green credit can promote green sustainable development and the impact gradually strengthens over time as the incremental implementations of complementary policies with substantial constraints and incentives, through which pollution control and economic growth achieve a "win-win" situation. Furthermore, the results indicate that green credit reduces the overall amount of energy inputs while optimizing the energy input structure. However, green credit does not boost the green technological level and even crowds out high technical value green innovations. Besides, the pollution reduction effects of green credit are associated with the strength of green credit constraints and the importance of pollution industries in the local economy, which means green credit performs better pollution reduction effects in regions with relatively strong green credit binding effects or in regions where pollution industries are not local economic pillars. The empirical results are further validated through robustness tests, including changing scope and measurement variables and applying the synthetic control method.
Although this paper provides valuable contributions to the research area of green credit and green sustainable development, specific limitations exist in the current study. Firstly, as the official information disclosure of green credit in China is not sufficient, existing studies, including ours, could only use estimation methods through different perspectives to measure green credit, which is overall logical and reasonable but may lose some accuracy. Secondly, since there might be a certain degree of lag in the effect of green credit on the economy, the dynamic impact and long-term effects of green credit deserve further study. Thirdly, considering the characteristics of the Chinese administrative systems, introducing the behavior of local governments and local officials into the analysis of green credit and green sustainable development could be valuable.
中国一直在探索一种经济增长与环境保护协调发展的可持续发展道路,旨在建设美丽中国。绿色金融在调整金融资源错配和引领实体经济绿色可持续发展方面的作用正受到越来越多的关注。目前,绿色信贷在中国绿色金融资金总额中占比超过 90%,是绿色金融矩阵的最重要组成部分。绿色信贷是否能有效促进区域经济的绿色和可持续发展,在很大程度上决定了中国经济绿色转型的成败。
现有绿色信贷研究主要集中在其对环境污染产业或公司的融资、投资和减排的影响上。本文通过探讨绿色信贷是否能有效促进绿色可持续发展,以及绿色信贷对绿色可持续发展价值链的上游(能源投入)、中游(技术创新)和下游(污染排放)阶段产生何种影响,拓展了这一领域的文献。
本文基于 2012-2019 年的城市面板数据,讨论了绿色信贷对绿色可持续发展的影响。采用基于 SBM 方向距离函数的 GML 指数来计算绿色可持续发展水平。城市层面的绿色信贷规模由银行发放的绿色信贷计算得出,权重为城市银行分支机构的密度。稳健性分析采用综合控制法,以减少内生性问题的影响。
研究结果表明,绿色信贷可以促进绿色可持续发展,并且随着具有实质性约束和激励的补充政策的逐步实施,这种促进作用逐渐增强,从而实现污染控制与经济增长的“双赢”局面。此外,研究结果表明,绿色信贷减少了能源投入总量,同时优化了能源投入结构。然而,绿色信贷并没有促进绿色技术水平的提高,甚至挤出了高技术价值的绿色创新。此外,绿色信贷的减排效果与绿色信贷约束的强度和当地经济中污染产业的重要性有关,这意味着在绿色信贷约束效果较强或污染产业不是当地经济支柱的地区,绿色信贷的减排效果更好。通过改变范围和测量变量以及应用综合控制法等稳健性测试,进一步验证了实证结果。
尽管本文为绿色信贷和绿色可持续发展的研究领域提供了有价值的贡献,但当前研究仍存在一定的局限性。首先,由于中国绿色信贷的官方信息披露不足,现有研究,包括本文在内,只能通过不同的视角采用估算方法来衡量绿色信贷,这种方法在整体上是合理的,但可能会失去一些准确性。其次,由于绿色信贷对经济的影响可能存在一定的滞后,绿色信贷的动态影响和长期效应值得进一步研究。第三,考虑到中国行政体制的特点,将地方政府和地方官员的行为纳入绿色信贷和绿色可持续发展的分析中可能具有价值。