Differences in China’s Regional Ecological Efficiency and Influencing Factors
ZHANG Hu-ping1, GUAN Shan2, WANG Hai-dong3
1.School of Government, Sun Yat-Sen University, Guangzhou 510000, China; 2.School of Architecture and Design, University of Technology Sydney, Sydney 2007, Australia; 3.School of Economics and Trade, Hunan University, Changsha 410079, China
Abstract：
Based on SBM model, the paper calculates the ecological efficiency of China from 2004 to 2012 by introducing undesired output. It elaborates on the trend of space-time evolution of China’s ecological efficiency from the perspectives of regional average efficiency and scale effect. From the perspective of environmental regulation, it also analyzes the influencing factors of China’s ecological efficiency adopting regression. The results show that at present China’s overall ecological efficiency presents a downward trend, and the ecological efficiency in eastern region is the highest, followed by that in the west, and the lowest is that in the central region. The scale effect of ecological efficiency in all regions is smaller than 1, which means it is not the main source of ecological efficiency difference. In terms of trend, the scale effect in eastern and central regions is on the decline while that in the western region is on the rise. The present environmental regulation has certain negative effects on ecological efficiency. “Porter hypothesis” does not exist in China at present while Kuznets’ environmental curve is significant in the improvement of ecological efficiency.
2017 
