Empirical study on total factor productivity of national joint-stock commercial banks

This paper is based on 12 national joint-stock commercial Banks data from 2007 to 2011, using the Malmquist productivity index based on DEA. For national joint-stock commercial banks Malmquist index was calculated and decomposition and the results were explained. The results show that, First, since 2008, the national joint-stock commercial banks´ total factor productivity decrease slightly, the main cause is a decline in the index of technological change; Second, Decrease of technological change could be attributed to the financial crisis in 2008; Third, Banks should be on the basis of improving the operating efficiency, expand the scale of the bank.