中国城市公共支出效率差异及其收敛性研究——基于DEA—Malmquist模型的实证分析

Reseach on China's Urban Public Expenditure Efficiency Differences and Its Convergence: Empirical Analysis Based On DEA-Malmquist Model

利用DEA方法和Malmquist指数,对我国252个地级及以上城市2004—2010年的政府公共支出效率进行了估算,并对效率的动态变化和效率的差异进行了分析。研究表明:城市公共支出效率总体水平较低,各地区、各层次间差异较大,且在样本期间呈下降趋势,下降的原因主要在于技术水平的降低,以及技术效率降低的原因。并且城市公共支出效率差异随时间推移呈现出缩小的趋势,存在着σ收敛和β相对收敛和绝对收敛。

Using DEA method and Malmquist index,this paper evaluates the public expenditure efficiency of China＇s 252 prefectural level and above cities during the period of 2004 to 2010, analyzes the dynamic changes of efficiency and differences in the efficiency. The results show that urban public expenditure efficiency is lower on the whole, has large differences between various regions and levels and has a downward trend due to the reduction of the level of technology and decrease of technical efficiency during the sample period. The differences between urban public expenditure efficiency is showing a narrowing trend over time and exists α convergence and βrelative convergence and absolute convergence.