基于DEA和Malmquist指数的中国区域环境治理效率研究

Regional Environmental Governance Efficiency Research in China based on the DEA and Malmquist Index

针对中国内地30个省(除西藏)的环境治理效率,文章在选取特定投入产出指标的基础上,先运用DEA方法静态分析了中国内地30个省(除西藏)2010年和2011年的环境治理效率,再运用Malmquist指数动态分析了中国内地30个省(除西藏)2002年至2011年的序列数据,由此得出了基于动态时间序列的中国区域环境治理效率变动情况。研究发现,基于静态时间考虑,2010年和2011年国内各省均存在投入大、产出小的资源浪费现象,由此导致各区域环境治理效率偏低。基于动态时间考虑,这10年间中国整体的区域环境效率呈现下降的趋势,平均TFP指数只有0.955。研究结果还表明,技术效率是制约中国区域环境治理效率偏低的主导要素,因此应当适当加大科技投入,以提升环境治理效率。

By selecting inpnt and output indicators, this paper firstly analyzes the environmental governance efficiency in do- mestic 30 provinces （except Tibet） in 2010 and 2011 by using DEA method static analysis, and then analyzes the sequence da- ta of China＇ s 30 provinces （except Tibet） from 2002 to 20t I by using the Malmquist index dynamic analysis, which based on dynamic time series of China regional environmental governance efficiency change. The paper finds that, based on the static time, in 2010 and 2011, there are large investment, yield small resources waste phenomenon in the domestic provinces, whit：h leads to low efficiency of regional environmental governance. Based on dynamic time, China＇s overall regional environ- mental efficiency declines, the average TFP index is only 0.955 in past l0 years. The results also show that the technical effi- ciency of China is the leading elements for restricting the regional environmental governance efficiency, therefore it should be appropriate to increase investment of science and technology, in order to improve the efficiency of environmental management.