The Impact Of Green Credit On The Cost Efficiency Of Chinese Commercial Banks ——An Empirical Study Based On PSM-DID Model

In recent years,China’s commercial banks have witnessed rapid development of green credit,which has played a positive role in promoting the implementation of green and low-carbon development concept.Under the background of green credit policy,this paper will explore the impact of the development of green credit on the cost efficiency of China’s commercial banks.Firstly,it combines the development status of green credit in China’s commercial banks;Secondly,from the theoretical level,it analyzes the impact of green credit policy on the cost efficiency of commercial banks through cost effect,credit risk management and reputation mechanism.Thirdly,the cost efficiency index system is established based on the background of green credit policy.The stochastic frontier method（SFA）is used to measure the efficiency results,and the propensity matching score and multi-period differential method are innovatively used,and the mechanism test and dynamic effect test are carried out.Comprehensively investigate the impact of green credit on the cost efficiency of banks.The results show that,first,the implementation of green credit policy can effectively improve the cost efficiency of state-owned banks and joint-stock banks,but will have a negative impact on the cost efficiency of urban rural commercial banks;Second,in the long run,green credit business is still beneficial to state-owned banks and joint-stock banks to improve the cost efficiency,but has no significant impact on urban commercial banks and rural commercial banks;Third,green credit reduces the cost efficiency of commercial banks through the cost mechanism,and improves the cost efficiency through the credit risk management mechanism and reputation mechanism.Based on this,this paper puts forward the following policy suggestions: Firstly,actively fulfill the social responsibility of commercial banks and improve the management system of green credit within banks;Secondly,Improve the communication mechanism of green credit information and effectively improve the quality of corporate credit environment information disclosure;Thirdly,strengthen the construction of green credit supervision system,strengthen the supervision and examination of commercial banks and financial markets.