关键词: 数字经济, 城市商业银行, 银行被动风险, 银行主动风险, 空间溢出

Abstract: In the era of digital economy,the demands of bank customers show typical characteristics of digitalization,online and intelligence,which has greatly promoted the digital transformation of banks.The involvement of technology companies in internet finance has also brought about drastic changes to the competitive environment of commercial banks.So,digital economy will inevitably have an impact on the risk of regional banking industry.Commercial banks,as the financial industry with the most profound digital transformation,are also the main undertakers of regional financial risks.It is of practical significance to study this issue.
This paper uses the risk indicators of major city commercial banks in the region to measure the risk of regional banking industry,and matches the micro-data of 102 city commercial banks in China from 2011 to 2019 with the regional digital economy data to investigate the impact of digital economy on regional banking risk by using a combination of empirical methods.The findings are as follows:Firstly,from the perspective of active and passive risk difference,digital economy significantly reduces the passive risk of regional banking industry,and this conclusion also passes a series of robustness tests such as exogenous shock test and instrumental variable estimation.However,the digital economy will exacerbate active risk-taking in banking.Secondly,the comparison of function channels shows that the digital economy can effectively reduce regional banking risks through promoting enterprise innovation,upgrading industrial structure,reducing economic fluctuations,and the digital economy will also increase banking risks through financial deepening,intensifying bank competition.Thirdly,the development of local digital economy can reduce the level of banking risk in neighboring regions,and this reduction effect is more significant than that in the locality.Finally,in the eastern region and regions with developed digital economy,the positive effect of digital economy on restraining financial risks is more significant.
The marginal contributions of this paper are as follows:Firstly,the existing literature mainly studies bank risk from the provincial level or the micro level of banks.This paper discusses the main influencing factors of regional banking risk mainly from the city level.Secondly,the existing literature mainly analyzes financial risks from the perspective of digital finance.This paper studies the influencing factors of digital economy on regional banking risk from the overall and hierarchical dimensions.Moreover,this paper explores the impact of digital economy on the risk of regional banks in the context of the COVID-19 epidemic.Thirdly,the existing literature mainly focuses on the influence of micro-factors on bank risks.This paper systematically combs the mechanism of the digital economy's influence on the risk of banking industry from the medium and macro channels such as enterprise innovation,industrial structure upgrading,reducing economic fluctuations,and financial deepening.In addition,this paper discusses the spillover effect of digital economy on banking risk in neighboring regions from the perspective of regional spatial correlation spillover.

Key words: Digital Economy, Urban Commercial Bank, Passive Risk of Bank, Active Risk of Bank, Spatial Spillover