不良贷款约束下我国上市商业银行效率和全要素生产率测度

The efficiency and total factor productivity of Listed Commercial Banks under the constraint of bad loans

运用全域方向性距离函数和全域Malmquist-Luenberger指数测度了2010-2015年间我国上市商业银行在不良贷款约束下的效率和全要素生产率,并与未考虑不良贷款因素下银行效率和全要素生产率进行对比分析。研究结果发现不良贷款确实对银行效率和全要素生产率产生较大影响。在样本区间内银行效率存在约20%的投入资源浪费,未达到生产有效前沿;银行全要素生产率增长主要依靠技术进步;各银行发展之间还存在较大差距。

In the period of 2010-2015,the efficiency and total factor productivity of listed commercial banks in China,which under the constraint of non performing loans,were analyzed by using global directional distance function and global Malmquist-Luenberger index. In addition,the bank efficiency and total factor productivity are analyzed and compared with those without considering the bad loans. The results show that non-performing loans have a great impact on the efficiency and total factor productivity. In the sample interval,there is still about 20%resources waste of the efficiency in the bank,and it does not reach the effective frontier. The growth of Total factor productivity is mainly rely on technological progress. And then,there is a big gap between the development of commercial banks.