基于中间业务的中国商业银行生产率变化

Chinese Commercial Bank’s Productivity Change Based on Intermediate Business

本文运用非参数Malmqusit方法实证考察了1999￣2005年在银行产出定义中考虑中间业务时对中国商业银行生产率变化的影响,并把生产率分解为效率变化和技术进步。结果表明,当在银行产出中不考虑中间业务时,商业银行全要素生产率每年平均增长率为6.6%,技术进步指数年均增长率为7.1%,而考虑中间业务时生产率年增长率为8.8%,技术进步指数年均增长率为8.5%。不考虑中间业务,则会低估银行生产率水平,而考虑中间业务活动往往会导致估计的银行生产率水平的增加。考虑中间业务对银行技术进步影响比较大,而对效率似乎不显著。最后作者提出了几点政策建议。

By using the non-parametric Malmquist methodology, this paper makes an empirical study on Chinese commercial bank＇s productivity change when introducing intermediate business into the definition of bank output from 1999 to 2005. The paper uses total factor productivity （TFP） index to describe bank＇s productivity and breaks bank＇s productivity into two parts： efficiency change and technical progress. The main conclusions are as follows： when not introducing intermediate business, the average growth rates per year of commercial bank＇s TFP index and technical progress are 6.6% and 7.1%, respectively. However, when considering intermediate business, both growth rates are 8.8% and 8.5%, respectively. This data change reveals that without considering inter- mediate business results in the underestimation of bank＇s productivity. Moreover, the introduction of intermediate business makes significant influence on technical progress, but such influence on efficiency is not significant.