北京城市增长效率变化轨迹

Change of urban growth efficiencies of Beijing

基于北京市2004-2011年间城市社会经济面板数据,运用数据包络分析模型和非参数的马奎斯特指数法,分析了北京市的全要素生产率变动情况及北京市16个区县经济增长效率的差异。研究表明:北京城市增长的全要素生产率主要依靠技术进步推动,城市技术效率水平一般,各区县内部差异明显,规模效应的抑制是制约技术效率提高的主要因素;北京城市技术效率和生产率变化呈现弱衰退的趋势,主要原因是规模效率的下降,且各区县间的技术效率和生产率变化也存在着差异。

By using non parametric Malmquist index and the DEA model and the panel data of Beijing from 2004 to 2011, this essay analyzes the urban efficiencies and their chan ges of 16 districts and counties of Beijing. The results show that the comprehensive efficiency of Beijing is just at a general level,and the differences between the districts and counties are obvious. The scale efficiency determines the comprehensive efficien- cy to a large extent. The analysis of urban efficiency changes show that both the comprehensive efficiency change index and productivity change index decrease, indicating that the urban efficiency does not improve, and the tendency of productivity decline is obvious. The change of scale efficiency is the major determining factor of the change of comprehensive efficiency and productivity index. The change index of comprehensive efficiency varies among 16 districts and counties of Beijing, the same to productivity change index.