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城市化过程中的城市扩张与城乡收入差距的问题已经引起学术界的广泛关注。二者是否存在因果关系,其中的内在逻辑如何?这对我国新型城镇化的发展提出重要的问题。通过对2001年至2011年全国地级市的面板数据进行统计模型分析发现,由于城乡收入存在差距而向城市大量聚集的人口会导致城市土地扩张,人口集聚产生的规模经济驱动力拉动政府的投资偏向于生产力要素和经济要素更为集中的城市,进一步形成城市土地的扩张。为缓解二者的矛盾,我国城乡地区需要提高土地利用效率,实现农村自主发展,缩小城乡收入差距,形成城乡互动的新局面,促进新型城镇化的发展。
The urban expansion in the process of urbanization and the income gap between urban and rural areas have caused widespread concern in academia. Whether there is a causal relationship between the two, and what is the internal logic? This poses an important issue for the development of China’s new urbanization. Through the statistical model analysis of the panel data of prefecture-level cities from 2001 to 2011, it is found that the large-scale urban agglomerations will lead to the expansion of urban land due to the gap between urban and rural incomes, and the economies of scale driven by population agglomeration will drive government investment Biased in favor of the more productive elements and economic elements of the city, and further the formation of urban land expansion. In order to alleviate the contradiction between the two, urban and rural areas in China need to improve land use efficiency, achieve rural autonomous development, narrow the income gap between urban and rural areas, create a new situation of urban-rural interaction, and promote the development of new urbanization.