中国生态福利绩效的区域差异、分布动态与随机收敛研究

Regional Differences,Distribution Dynamics and Stochastic Convergence of Ecological Welfare Performance in China

基于2005—2019年中国30个省份的面板数据,利用Super-SBM模型测算了中国的生态福利绩效值,采用Dagum基尼系数、核密度估计法、δ收敛和β空间收敛模型分析了中国生态福利绩效的区域差异、分布动态和收敛性,并分析了其俱乐部收敛情况。研究发现:(1)中国生态福利绩效的平均值为0.662,且整体呈下降趋势,地区生态福利绩效呈现出东部>中部>西部的分布格局。(2)区域间差异是中国生态福利绩效区域差异的主要来源;中国整体、东部、中部区域内差异呈不断缩小趋势;各地区生态福利绩效的分布动态存在异质性。(3)中国整体、东部、中部地区存在δ收敛,中国整体、东部、中部和西部地区存在β条件收敛,三大地区均存在俱乐部收敛。

Based on the panel data of 30 provinces in China from 2005 to 2019,the ecological welfare performance value of China was calculated using the Super-SBM model.By using the Dagum Gini coefficient,nuclear density estimation,δconvergence and spatialβconvergence model,this paper analyzed the regional differences,distribution dynamics,convergence of ecological welfare performance and the club convergence in China.The study found that:(1)The average value of ecological welfare performance in China is 0.662,and the overall downward trend is shown,and the regional ecological welfare performance shows the distribution pattern of east>central>west.(2)Interregional differences are the main source of regional differences in ecological welfare performance in China;The differences in China as a whole,eastern and central China are shrinking;There is a heterogeneity in the distribution dynamics of ecological welfare performance among various regions.(3)There isδconvergence in the ecological welfare performance of China as a whole,eastern and central regions,βconditional convergence in China as a whole,eastern,central and western regions,and club convergence in all three regions.