| China’s commercial bank’s inter-bank business has gone through the stages of start-up,innovation,risk exposure and strict supervision,which not only provides a new mode of business exploration,but also brings new risks.In order to clarify the risks of interbank business,to explore the impact of interbank business on different aspects of bank risk,to discuss the effectiveness of regulatory policy,this paper uses qualitative analysis and empirical analysis methods,studies the development and mode of interbank business,and its impact on bank’s risk.In qualitative analysis,it is believed that the business model of the industry will affect the bank’s risk through four aspects: liquidity,profitability,capital structure and credit risk.The development of interbank business indicates that regulatory policy will change the structure of interbank business,and promote the further innovation.Now commercial banks are facing greater credit risk and liquidity risk.In quantitative analysis,the annual data from 2005 to 2018 of 31 commercial banks listed on A-shares are adopted,and the policy virtual variables are introduced.Empirical results show that traditional interbank asset business and new interbank liability business can reduce bank risk,new interbank asset business will increase bank risk,these effects are more significant in city commercial banks and agricultural commercial banks.Interbank asset business can improve the liquidity and profitability,and interbank asset business will overestimate the capital adequacy ratio,and underestimate the non-performing ratio,while the interbank debt business reduces the capital adequacy ratio and increases the non-performing ratio.The introduction of regulatory policy is beneficial to control risk,proving the policy is effective.Finally,according to the results of analysis,this paper provides some recommendations to the commercial bank’s risk control and macro-regulation policy. |