关键词： 银行业竞争度, Boone指数, DEA

Abstract: Based on the comparative analysis of the existing measurement models and indicators,and combined with the development trend of the continuous expansion of off-balance sheet assets,the continuous improvement of the level of comprehensive management and the increasingly obvious financial collectivization of Chinese commercial banks,this paper attempts to improves the estimation method of Boone index.An empirical study is conducted based on the operating data of 60 commercial banks from 2012 to 2018 to evaluate the impact of interest rate marketization on the competitiveness of commercial banks.The results show that the type of model will directly affect the estimated value of Boone index,and the estimated value based on dynamic panel data model is significantly different from that of random effect model and fixed effect model.With the passage of time,the asset scale does not increase with the improvement of efficiency;the Boone index shows a downward trend,and the competitiveness of the banking industry decreases year by year.After the interest rate marketization,the degree of banking competition has not increased,but decreased significantly.Institutional deregulation of interest rates can not completely reverse the current situation of lack of competition in the banking industry.We also need to expand the opening up of the banking industry,relax the access control of small and medium-sized banks,harden the soft budget constraints of local governments and state-owned enterprises,and further deepen the market-oriented reform of the banking industry.

Key words: degree of competition of banking industry, Boone index, DEA