区域环境绩效测度及收敛性分析

Combining the characteristics of GM direction distance function, non- radial DEA model and Luenberger productivity indicators, we develop a non-radial global DEA model to measure eco-performance of different regions. Using the data from 1995 to 2011 of 30 provinces, we have calculated the eco-performance and its decomposition index. The results showed that the level of eco-performance at annual growth rate of 1%, where the technical efficiency at annual decrease rate of 0.6% ,technological progress at an annual growth rate of 1.6%. in the Samples study period of eco-performance, technical efficiency and technological progress of the cumulative growth rate of 16.7%, -9.2% and 25.9% respectively. Regional eco-performance and its decomposition index showed a ladder-like distribution, in turn decreases from east to west; Convergence test results show that these is existing four convergence clubs of eco-performance and six divergent individuals. Areas with high eco-performance tend to be converged with higher eco-performance Areas; areas with low eco-performance seem tend to converged with lower eco-performance areas.