风险约束下的商业银行效率及其影响因素研究

On the Efficiency of Commercial Banks and Its Influencing Factors under Risk Constraints

论文基于45家中国商业银行2002—2011年的非平衡面板数据，从商业银行效率测度模型及其影响因素计量模型出发，对风险约束下的中国商业银行效率及其多方面的影响因素进行了系统的实证分析。结果表明，各商业银行的效率水平不断提高且差距逐渐缩小；无论是从估计参数的假设检验来看，还是从不同情形下的效率值测算结果来看，风险因素对样本银行效率存在显著影响，不考虑风险因素将导致所得效率值的明显低估；在效率的影响因素中，市场占有率对商业银行效率存在明显的负面影响，产权改革、改制上市、战略引资、宏观经济环境以及资产规模则具有明显的促进作用。

Based on the unbalanced panel data of 45 commercial banks in China from 2002 to 2011, from efficiency measure model of commercial banks and its influencing factors econometric model, this paper systematically and empirically studies the Chinese banks＇ efficiency and its various influencing factors under risk constraints. The results show that the efficiency of commercial banks continues to improve gradually and nairow the gap. Viewed from the hypothesis testing of estimated parameters, or from the estimated value of efficiency under different circumstances, risk factors have significant impacts on the efficiency of sample banks. Without considering risk factors will lead to efficiency values ？？ obtained significantly underestimate. Market share have significant negative impacts on the efficiency of commercial banks. Property rights reform, strategic investors, restructuring and listing, macroeconomic environment and asset size have significant role in promoting efficiency of commercial banks.