中国收入分配水平的区域差异及收敛性研究
Research on Regional Difference and Convergence of Income Distribution Level in China

本研究构建收入分配水平评价指标体系，使用熵值法综合测算2011~2020年中国31个省份的收入分配水平，采用Dagum基尼系数法测度收入分配水平的区域差异及其来源，并运用变异系数和空间收敛模型检验其σ收敛、β收敛。研究发现：1) 中国各省份收入分配水平差距较大且总体差异呈现波动上升趋势。2) 东中西部三大区域的区域内差异均呈现扩大趋势，且区域间差异均呈现扩大趋势；区域间差异的贡献程度是全国收入分配水平总体差异的主要来源。3) 全国及东中西部三大区域收入分配水平不存在明显的σ收敛特征，但均存在明显的绝对β收敛和条件β收敛。
In this study, the evaluation index system of income distribution level was constructed, the entropy value method was used to comprehensively measure the income distribution level of 31 provinces in China from 2011 to 2020, the regional differences and sources of income distribution level were measured by the Dagum Gini coefficient method, and the coefficient of variation and spatial convergence model were used to test the σ convergence and β convergence. The results show that: 1) There is a large gap in the income distribution level of different provinces in China, and the overall difference shows a fluctuating upward trend. 2) The intra-regional differences in the eastern, central and western regions all showed an expanding trend, and the inter-regional differences showed an expanding trend. The contribution of regional differences is the main source of overall differences in the level of income distribution in the country. 3) There is no obvious σ convergence in the income distribution level of the whole country and the three major regions in the eastern, central and western regions, but there is an obvious absolute β convergence and conditional β convergence.