生态效率区域差异及其与产业结构升级交互空间溢出效应

基于包含非期望产出的超效率SBM模型测度中国30个省际地区生态效率，采用基尼系数、对数离差均值及泰尔指数分析不同地区生态效率差异情况，运用空间联立方程模型探讨产业结构升级与生态效率间的交互效应与空间效应。主要结论为：① 中国生态效率整体水平较低且发展不均衡，东部地区高于中西部地区，西部地区高于中部地区；② 基尼系数、对数离差均值及泰尔指数3个指标显示，东部地区省际间生态效率存在较大差异，且差异变化程度并没有显著改善，中部地区省际间生态效率差异较小，西部地区省际间生态效率差异呈现先下降，后上升，再下降的趋势。③ 产业结构升级与生态效率存在双向互促作用，产业结构升级与生态效率均存在正向溢出效应，并且产业结构升级与生态效率存在正向交互空间溢出效应。

Regional Difference of Ecological Efficiency and Its Interactive Spatial Spillover Effect with Industrial Structure Upgrading

This article measured the ecological efficiency of 30 provinces (Excluding Tibet, Hong Kong, Macao and Taiwan regions) in China based on the Super-SBM model considering the undesirable output, and analyzed the differences of different regional ecological efficiencies by using GINI, GE₀ and GE₁. On this basis, the Spatial Simultaneous Equation was introduced to explore the interaction effect and space spillover effect between industrial structure upgrading and ecological efficiency. The results showed that: 1) The overall level of ecological efficiency in China is relatively low and the development of it is unbalanced among regions. The ecological efficiency of the eastern region is higher than that of the central and the western regions, while the ecological efficiency of the western region is higher than that of the central region. 2) The three indicators of GINI, GE₀ and GE₁ show that there is a great differences in the inter-provincial ecological efficiency in the eastern region, and the degree of the difference has not been significantly improved, the difference of inter-provincial ecological efficiency in the central region is small, and the difference of inter-provincial ecological efficiency in the western region shows a trend of decreasing firstly, then increasing, and then decreasing. 3) There is a mutual promoting effect mechanism, a positive spillover effect and a positive interactive spatial spillover effect between industrial structure upgrading and ecological efficiency.