Improving the operational efficiency of commercial banks is an important content of high-quality financial development.At present,the rapid development of information technology makes the high integration of digital technology and financial field,and digital finance came into being.Under the background of the development of digital finance,the business model,business field,management level and profitability of traditional banks have been widely and deeply affected.On the one hand,the development of digital finance urges commercial banks to effectively reduce information asymmetry and improve their operation efficiency by using big data and artificial intelligence technology.On the other hand,the development of digital finance has also impacted many businesses of commercial banks and intensified the competition among banks.This paper firstly defines the concept of digital finance and operational efficiency of commercial banks by sorting out the mainstream viewpoints of related domestic and foreign literature.and analysis the mechanics of the effects of digital finance development on commercial bank operational efficiency at the theoretical level through catfish effect,technology spillover effect,economies of scale,financial innovation effect,long tail effect and financial intermediary effect.According to the 2011-2020 data information of 40 commercial banks in China.,the DEA Malmquist model is used to measure their operation efficiency.At the same time,the digital inclusive finance index of Peking University is weighted to synthesize the National Digital finance index,match the two,and empirically test the impact of digital finance development on the operation efficiency of commercial banks by using the stationary-effect model.This paper analyzes the heterogeneity of efficiency sub sample regression of different types of commercial banks,and tests the robustness.Analyze the case of China Merchants Bank’s digital transformation and summarize its lessons learned.Finally,it is concluded that the development of digital finance is conducive to the improvement of the efficiency of banks,and puts forward policy suggestions for commercial banks in combination with the current actual situation: promoting digital transformation and upgrading,strengthening the construction of modern information technology,establishing and improving talent guarantee mechanism,innovating business philosophy and improving management ability,building an open banking platform Different types of commercial banks carry out personalized development. |