城市群建设对城乡收入差距的政策效应——基于统一大市场的视角
The Policy Effect of Urban Agglomeration Construction on the Urban-Rural Income Gap—From the Perspective of a Unified Market

城市群作为区域高质量发展的重要载体，其规划政策的实施是否有利于加快建设统一大市场、进而优化收入分配格局值得探讨。因此文章通过多时点双重差分方法从统一大市场的视角经验分析了城市群建设对城乡收入差距的政策效应。研究表明，在目前经济发展阶段，城市群规划政策的实施短期内扩大了城乡收入差距，表现为在发展更为成熟的城市群、经济更为发达的地区，这种政策效应相对较弱，究其原因在于城市群建设促进了要素畅通流动，推进统一大市场的构建，但集聚效应增加了城乡之间的要素错配程度，在市场规模越大的地区城市群政策效应越大也验证了这一结论。
As an important carrier of regional high-quality development, it is worth exploring whether the implementation of planning policies of urban agglomerations is conducive to accelerating the construction of a unified market and optimizing the pattern of income distribution. Therefore, this paper empirically analyzes the policy effect of urban agglomeration construction on the urban-rural income gap from the perspective of a unified market through the multi-time difference-in-difference method. The results show that in the current stage of economic development, the implementation of urban agglomeration planning policy has widened the income gap between urban and rural areas in the short term, which is manifested in the more mature urban agglomerations and more economically developed areas, and the policy effect is relatively weak, because the construction of urban agglomerations promotes the smooth flow of factor markets and promotes the construction of a unified market, but the agglomeration effect increases the degree of factor mismatch between urban and rural areas. In the area where the market is larger, the greater the policy effect of urban agglomeration, which also verifies from the side that the smooth flow of factors has exacerbated the inequality between urban and rural areas in the current development stage.