| Security firms play a key role in several areas of economic system of China.With the deepening development of China’s market economy,security firms,especially listed security firms’ development is attracting more attention because of its key financial market position and the huge impact on the economy.The efficiency of security firms will affect China’s economic efficiency and the reform and development from several aspects,such as efficiency of financing,efficiency of investment,capital allocation efficiency.Therefore,the efficiency of China’s listed security companies and the improvement of path problems are worthy of attention.This paper attempts to analyze and answer the above questions.This paper,based on a sample of listed security firms in 2016,collecting data of input and output indicators,comparing listed security company from the level of risk management,the scale,equity structure,employees’ education level and the capital structure,apply DEA methods as CCR model,BCC model and SBM model to evaluate the efficiency of the listed securities company from different emphases,and then using the method of projection analysis combined with the front analysis conclusion to efficiency analysis conclusions.Existing research on the analysis of the efficiency of the security company focuses more on the conversion efficiency between the cost of income,or on the profitability,this article will analyze from the view of company’s main business production capacity.The main conclusions of this paper are as follows:(1)in terms of inefficiencies,the scale efficiency of China’s listed security companies is more serious than that of pure technical efficiency.(2)one of the prerequisites for security companies to achieve technical efficiency is the higher risk management level.(3)the efficiency of non-state-owned security companies is relatively high,and the pure technical efficiency of security companies with higher knowledge level is higher. |