长江经济带城市制造业集聚的空间外部性:识别与应用

文章运用双变量莫兰指数研究了长江经济带130个城市制造业集聚的空间外部性。首先,测算了城市的经济发展指数和环境污染指数,以制造业为中心变量运用双变量莫兰指数测算了制造业与城市经济发展指数以及环境污染指数间的空间自相关性,得到了长江经济带上表现出经济外部性和环境外部性的城市;其次,从影响城市特征属性的因素出发,通过城市区位、城市发展定位与规划以及城市科技创新能力等因素分析了城市空间外部性的产生机理;最后,在识别具体城市外部性类型与表现的基础上,从城市政策体系、资源信息、产业结构和生态环境几个方面提出了对城市制造业空间外部性的应用,实现长江经济带城市空间联动效应。

Spatial externality of manufacturing agglomeration in the Yangtze River Economic Belt: Identification and application

This paper studies the spatial externality of manufacturing agglomeration in 130 cities in the Yangtze River Economic Belt by using bivariate Moran index. Firstly, the urban economic development index and environmental pollution index are calculated. Taking manufacturing industry as the central variable, the spatial autocorrelation between manufacturing industry, urban economic development index and environmental pollution index is calculated by using bivariate Moran''s I. The cities with economic and environmental externality in the Yangtze River Economic Belt are obtained. Secondly, in the review of the factors that affect the attributes of urban characteristics, this paper analyzes the generation mechanism of urban spatial externality through the factors of urban location, urban development positioning and planning, and urban scientific and technological innovation capability; finally, on the basis of identifying the specific types and performance of urban externality, this paper analyzes the urban policy system and resource information. In order to realize the spatial linkage effect of the Yangtze River Economic Belt, the application of the spatial externality of urban manufacturing industry is put forward from the aspects of industrial structure and ecological environment.