基于行业间投入产出引力模型的中国城市群界定与划分

The Definition and Division of Chinese Megalopolises Based on Inter Industry Input-output Gravity Model

城市群是国家发展的重心与引擎,其界定与划分标准是对其开展理论研究与规划实践的基础。通过对既有研究的争议与共识的系统述评,认为学界对城市群界定与划分争议的根源在于过度侧重绩效标准。城市间经济联系对城市群的形成具有决定作用,因此强化从联系标准对城市群进行界定与划分,可有效避免在界定与划分时对绩效准入标准的争论。针对传统引力模型未考虑城市间投入产出关系的不足,提出行业间投入产出引力模型来测度城市间经济联系,并以此作为界定与划分中国城市群的依据。

Megalopolis is the focus and engine of national development. Its definition and division criteria are the basis of theoretical research and planning practice.Based on the systematic review of the controversy and common understanding of existing research, this paper considers that the root cause of controversy of the definition and division is the excessive emphasis on performance standards.Economic links between cities have a decisive effect on the formation of megalopolis.,Therefore, to strengthen the definition anddivision of megalopolis from the link standards, can effectively avoid the debate of performance access standards in defining and dividing. In view of the problem of not considering the input and output relations between cities of the traditional gravity model, the paper puts forward inter industry input-output gravity model to measure economic links between cities, and regards it as the definition and division standard of Chinese megalopolises.