Based on the 104 cities of the Yangtze River Economic Belt with 2001—2013 panel data and the influence of urbanization, industrial development, service industry development and other factors, the influence of fiscal decentralization and institutional quality on urban sprawl in China is studied. The major findings of the study are summarized as follows. Firstly, the institutional quality is an im-portant factor to promote the spread of China's cities. Superior system environment has more advantages in attracting foreign investment and agglomeration of population, which leads to the expansion of urban size faster than the speed of urban population expansion. Secondly, Fiscal decentralization curbs the rapid spread of the city, meaning that fiscal decentralization effect is greater than the land in the urbanization of population urbanization, namely the fiscal decentralization of population agglomeration effect is greater than its expansion effect on land. Thirdly, urbanization, industrial development and service development are the driving forces for the rapid spread of cities in China. On the basis of this, the paper puts forward to control the rapid expansion of the city is an important re-alistic problem that needs to be paid attention to in the process of urbanization and economic development of China in the future.%文章基于长江经济带2001—2013年104个城市面板数据,在控制城镇化、 工业发展、 服务业发展等因素影响的基础上,实证研究了财政分权和制度质量对中国城市蔓延的影响,研究发现:①制度质量是促进城市蔓延的重要因素,制度质量更优越的地区在吸引外资、 集聚人口上的优势导致了城市规模的扩张速度明显快于城市人口的扩张速度;②财政分权抑制了城市的快速蔓延,意味着财政分权对人口城镇化的影响效应大于土地城镇化,即财政分权对人口的集聚效应大于其对土地的扩张效应;③城镇化、工业发展和服务发展推动了城市的快速蔓延.在此基础上,提出控制城市的快速扩张是未来一段时间城镇化和经济发展进程中需要关注的重要问题.
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