跨区经营对城市商业银行风险影响和作用机制研究

A Study on the Impact and Mechanism of Cross-regional Management on the Risk of City Commercial Banks

跨区经营是城市商业银行发展过程中的重要阶段,带来规模扩张的同时对风险的影响也至关重要。本文基于2004年至2015年我国69家城市商业银行的数据,考察了跨区经营对商业银行风险的影响和作用机制。研究发现跨区经营显著地降低了城市商业银行风险,采用Heckman两步法、变量替代和分地区进行稳健性检验,发现结论依然成立。进一步研究发现,贷款质量在跨区经营对银行风险施加影响的过程中起到了显著的中介效应,存在跨区经营→贷款质量→银行风险的传导机制。本文研究表明城市商业银行应该坚持跨区经营的发展方向,主管部门应该支持和鼓励城市商业银行跨区经营,保证城市商业银行跨区经营的制度供给,释放更多制度红利。

Cross-regional management is an important stage in the development process of city commercial banks, which not only brings the scale expansion but also is significant for the risk management. Based on the data of 69 city commercial banks in China from 2004 to 2015, the effects of cross-regional management on the risk and the mechanism of their management are investigated. It is found that cross-region management significantly reduces the risk of city commercial banks, and the Heckman two-step meth- od, variable substitute and sub-region robustness test are used to find that the conclusion is still valid. Further research on the im- pact mechanism shows that the quality of loans plays a significant mediating effect on the impact of cross-regional management on bank risk. The conclusion of the study suggests that the city commercial banks should insist on the development direction of the cross-regional operation. The authorities in charge should support and encourage the city commercial banks to operate cross-region- ally, and guarantee that the city commercial banks＇ cross-regional operating should provide institutional supply and release more institutional dividends.