Research On The Spillover Effect Of Non-Interest Income On Systematic Risk Of Commercial Banks

Since the 21 st century,with the development of various financial services,the relationship between financial institutions has become stronger and stronger,and the accompanying risks also show externality and linkage,which has aroused people's attention to systemic risks.At the same time,with the innovation of financial business,the bank gradually changed from a single interest margin business to a diversified business,and non-interest business emerged as the times require.However,the academic community has not yet formed a unified opinion on whether non-interest business will have an impact on the systemic risk of banks.Therefore,the study of non-interest business and systemic risk spillover effect is of great significance for banks to better develop non-interest business and prevent systemic risk.This paper mainly adopts the method of combining theory with practice,firstly,it elaborates the relevant theories and the development status of non-interest business.Selecting 16 banks listed on A-share market in China as samples,using conditional value at risk(CoVaR)method and quantile regression technology,it measures the phased dynamic changes of systemic risk contribution value of a single bank,and makes the contribution degree of systemic risk as the sample.In order to be the explanatory variable,the ratio of non-interest income to interest income is taken as the explanatory variable to establish a panel data model.Through empirical research,we find that the non-interest income of banks can significantly reduce their contribution to systemic risk.Therefore,we put forward relevant suggestions on the development of non-interest business in the future from two aspects of government supervision and commercial banks themselves.