The Rearch About The Financial Efficiency Of Our Country Based On DEA Model

This paper begins with the relevant financial data of 31 provinces in 2013 and autonomous regions nationwide as a sample, the efficiency of financial institutions in the provinces was analyzed by MaxDEA software through DEA model. With two DEA models called CCR and BCC, the financial efficiency is decomposed into pure technical efficiency and scale efficiency further, so as to get the distance between the surface and the provinces in the technology application and the scale of operation. And make the slack value as the reference value of the adjustment about input and output. The empirical analysis shows that the financial efficiency among three regions of the East,the West and the midland showed significant differences, the efficiency of eastern financial institutions is significantly higher than the central and western. When it comes to the input and output indicators of redundancy, redundancy mainly reflected in the input index and many provinces have redundancy in output index as well. To have a more macro grasp of the financial efficiency of our country, through the financial data from the data of China Statistical Yearbook and China Financial Yearbook, this paper analysis and decompose the financial efficiency value of all provinces in the country from September 2005 to 2013, the data of the scale effect of the provinces is consistent to some extent,because most of them showed increasing,so that most of the provinces of the financial market is not fully developed and expand business scale can contribute to the improvement of financial efficiency,and the decreases of scale effect of Zhejiang Province is the most obvious one,which reflects the province should reduce the scale of operation. The data also reflect the significant difference among different provinces in the pure technical efficiency, scale efficiency and comprehensive efficiency. In order to quantify the magnitude of the difference, this paper selects the Theil index as a metric, and the Theil index decomposition shows the interregional difference and the intra-regional difference of the three efficiency,thus analyze the three main sources of the three regional differences.According to division mode of the administrative area and the eight economic regions, this paper analyzed the three efficiency of the country in different regions and sources of differences comprehensively.The result shows that the eastern and southern coastal areas is the two minimum differences and the two greatest efficiency, the north and northwest regions need to improve the efficiency and reduce the degree of difference most.The domestic financial efficiency value and the degree of difference in 2007 and 2011 showed the obvious fluctuation and the degree of difference among the efficiency of the multiple areas in 2007 reached a peak, which reflects the broking out of financial crisis caused a certain impact to the operation of the domestic financial institutions. From the view of the source of difference,intra-regional difference is the main source, the contribution rate of difference has been higher than 90%, Compared with intra-regional differences, the internal differences of the provinces in different regions is more prominent. The data above reflects Chinese regional financial development imbalance is very serious.To a certain extent,this research reveals the financial efficiency differences and the corresponding problems in the development process of various regions,which requires to optimize financial institutions from the aspects of system and technology, develop the financial market and financial services vigorously, and reduce redundancy of inputs and outputs in order to really improve the financial efficiency of financial institutions.