长江经济带城市网络空间结构的特征——基于上市公司组织关系视角的分析

Structural features of urban networks space of the Yangtze River Economic Belt:based on the perspective of structure relations of listed companies

基于816家上市公司的跨区域布局数据,运用社会网络分析法从网络整体层面、城市个体层面和子群体层面,分析了长江经济带城市网络的空间结构特征。结果显示:长江经济带已经实现了网络化发展,且城市网络呈现出明显的多中心化格局;长江经济带的各城市在全行业、制造业和服务业领域均体现出了压倒性的资源集聚与要素辐射优势,但是在中介能力方面的优势尚不明显;行政中心城市表现出了高水平的中介能力以及在服务业领域的高水平的对外辐射引领能力,但是在制造业领域还未体现出领先的资源集聚与要素辐射能力;长江经济带城市网络的凝聚子群与该区域的规划城市群还没有形成很好的耦合关系。

Using data on branch locations of 816 listed companies in Yangtze River economic belt, this essay uses the social network methodology to analyze the urban network structures of Yangtze River economic belt from three perspectives： whole network level, individual city level and cohesive sub- groups level. The results show that all the prefecture -level cities in Yangtze River economic belt almost have established linkage with one or more cities, and the urban network of Yangtze River economic belt obviously has many cores. Cites in Yangtze River Delta Areas show overwhelming advantage of resources agglomeration and radiation in the urban network based on all lis- ted companies, manufacturing listed companies and service section listed companies, but they don＇ t show obvious advantage in linking role. Provincial capital cities exhibit high level of linking role and resources radiation ability in the field of service section, while they don＇ t show leading advantage of resources agglomeration and radiation in the field of manufacturing section. There isn＇t tight coupling between the cohesive subgroups of Yangtze River economic belt and its planned city agglomerations.