区域中心城市规模、市场一体化与城乡收入差距  

Regional Central City Scale,Market Integration and Coordinated Development of Urban-rural Areas

作　　者：秦蒙 刘修岩[2] 胡潇男 QIN Meng;LIU Xiuyan;HU Xiaonan(Shandong University of Finance and Economics,250014;Southeast University,211189;Jining Brach of the People's Bank of China,272008)

机构地区：[1]山东财经大学经济学院,250014 [2]东南大学经济管理学院,211189 [3]中国人民银行济宁市分行,272008

出　　处：《财贸经济》2025年第2期159-176,共18页Finance & Trade Economics

基　　金：国家社会科学基金项目“城市群空间结构优化促进区域协调发展的机制与路径研究”(19CJL020);山东省高校青创科技计划项目“以县城为载体的山东省城镇化建设推动城乡融合的效应与路径研究”(2023RW066)。

摘　　要：区域中心城市规模可能对区域一体化进程包括城乡间的一体化产生助推作用,进而影响城乡协调发展。本文在理论分析的基础上,基于地级市层面的样本展开一系列实证分析与因果识别,发现省会规模的扩张可以通过促进城乡市场一体化、推动非省会城市工业增长等途径,在显著降低城乡收入差距的同时提升农村收入水平。关于城市样本异质性的讨论表明:省会规模扩张对城乡收入差距的缩减作用,在经济发展水平更高、人力资本更充裕、人口具有一定规模或内部交通便利的地级市更为明显。本文的研究结果在理论层面深化了学术界对于城市集聚外部性的认识,同时在实践层面,从城市体系结构优化和城乡市场一体化的视角,为城乡协调发展和实现共同富裕提供了新的政策启示,还有助于辩证地看待“强省会”战略的长期作用。The scale of regional central cities is not only closely related to a reasonable city scale system, but also affects the high-quality coordinated development of the region. This paper theoretically analyzes the internal mechanism of the impact of the scale of regional central cities on the urban-rural income gap, and empirically uses the panel data of prefecture-level cities from 2002 to 2017 for the analysis, and then conducts multiple robustness tests to ensure the validity of the conclusions, for instance, deleting some samples with particularities or substitute the key variables. The study found that the expansion of the population scale of the provincial capital can significantly reduce the urban-rural income gap by improving the integration level of urban and rural markets within the province and promoting the industrialization of prefectural cities from the province in concern. After decomposing the urban-rural income ratio, it is found that this mode of narrowing the urban-rural income gap is achieved by increasing the disposable income of rural residents per capita without reducing the per capita income of urban residents, forming a kind of pareto improvement which is helping the poor without affecting the rich. It is found by regressions that the growth of the population scale of provincial capital helps the integration of the commodity market and factor market(including labor market) between urban and rural areas. At the same time, the effect of growth of the second sector of small cities can be proved when the population of the provincial capital enlarges. Then, the discussion on the heterogeneity of non-provincial capital cities shows that for non-provincial capital cities with higher levels of economic development and more abundant human capital, the expansion of provincial capitals will have stronger impact on reducing the urban-rural income gap and boosting the market integration between urban and rural areas. Meanwhile, cities with larger area of road infrastructure per capita, would benefit more

关 键 词：区域中心城市 城乡收入差距 面板数据 城乡市场一体化 

分 类 号：F293[经济管理—国民经济]