所有制结构、城镇化与城乡收入差距——基于双重二元结构视角的分析

Ownership Structure,Urbanization and Urban-Rural Income Gap——Based on the Perspective of Double Dual Structure

通过构建双重二元结构模型,对所有制结构、城镇化与城乡收入差距之间的关系进行了理论分析,同时利用2000—2015年的中国省级面板数据进行了实证检验。理论分析表明,公有制经济比重的提高能够缩小城乡收入差距,而城镇化的推进先是扩大、最终是缩小了城乡收入差距。实证结果显示：所有制结构与城乡收入差距存在U型关系,其对城乡收入差距的作用效果在东、中、西部地区存在差异;城镇化与城乡收入差距则存在倒U型关系。

Based on the construction of double dual structure model, this article theoretically analyzes the relationship among ownership structure, urbanization, and urban-rural income gap. Then we empirically test the conclusion using Chinese provincial panel data from 2000 to 2015. The theoretical analysis shows that the increase of proportion of the publicly-owned economy has narrowed the urban-rural income gap. Although the progress of urbanization would lead to the expansion of the income gap between urban and rural areas at first, it will certainly narrow the gap in the end. The empirical results show that there exists a ＂positive U-shaped＂ relationship between ownership structure and urban-rural income gap, the effect of which differs in eastern, middle and western areas. Finally, there also exists an inverted U-shaped relationship between urbanization and urban-rural income gap.