城市群是否能够促进城市发展

Do Urban Clusters Promote the Development of Cities?

本文基于1997-2012年中国地级市面板数据研究了城市群对城市经济增长的影响及其作用机制。研究发现,城市集群程度提高对城市经济增长具有明显的推动作用,疏解大城市聚集不经济、优化城市经济结构和促进区域一体化进程是集群发挥增长效应的重要渠道。城市集群在集群程度较低地区增长效应高于集群程度较高的地区,在落后的边缘地区的增长效应明显高于发达的核心地区,在中西部地区的增长效应明显高于东部地区,总体上城市群对各类地区具有一致的正向作用。交通发展是促进集群增长效应的重要手段,加强交通与城市群建设的有机结合对落后地区尤为重要。未来中国城市化进程应当坚持城市群作为主体形态,提高城市集群程度,实现城市经济的可持续发展。

This paper studies the effect of urban clusters on the development of cities based on the panel data of China＇s prefecture-level cities from 1997 to 2012. The results show that urban clusters can promote the economic development of cities through the channels of alleviating the diseconomies of agglomeration, enhancing the economic structure, and promoting the market integration. The effect of clusters is also heterogeneous low clustering level regions experience more effect than high clustering level re- gions,under developed regions experience more effect than developed regions, and central and western re- gions experience more effect than eastern Region. But urban clusters in general exhibit positive effect on e- conomic development. Transportation is important to exert this effect, therefore it is crucial to intensify the organic combination of transportation and urban clusters in underdevelopment regions. China＇s future urban- ization process should take urban clusters as the basic spatial form and actively enhance the clustering level of cities to promote the sustainable development for urban economy.