Based on the multi-source data of listed company headquarters and branches,co-publication papers,joint patent application and Baidu Index,this paper constructs aggregated network and categorized network among 286 cities at or above the prefecture level in China from 2011 to 2020. It uses the social network analysis method and spatial econometric model to empirically analyze the impact and mechanism of China's urban network position on economic growth. The results show that: 1) China's urban network exhibits significant spatial directionality,regions with higher urban network position and linkage strengths mainly distributed among the diamond-shaped structure composed of the Beijing-Tianjin-Hebei,Yangtze River Delta,Pearl River Delta and Chengdu-Chongqing urban agglomerations. There is also categorical heterogeneity in corporate network,information network,technology network and knowledge network. 2) The enhancement of urban network position and partner network position can promote economic growth. Economic agglomeration,technological innovation,green innovation efficiency and market potential are all important impact factors of urban network position on economic growth. 3) The impacts of urban network position on economic growth has regional heterogeneity in terms of location condition,size level and environmental quality,as well as categorical heterogeneity in different types of networks such as corporate network,information network,technology network and knowledge network.
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