数字经济发展何以塑造城市网络——基于社会分工的视角

How Can the Development of Digital Economy Shape Urban Networks?From the Perspective of Social Division of Labor

本文在社会分工视角下从技术和组织两个层面考察了数字经济塑造城市网络的理论机制,并匹配2011—2019年《中国城市统计年鉴》与上市公司“总部-分支”机构数据进行实证检验。研究发现,数字经济显著提升了城市网络中心性,这一结论在考虑指数测度误差、内生性问题以及外生政策冲击等因素后依然成立;相较于吸引外部投资,数字经济增强城市对外部城市进行投资的效果更甚。机制检验表明,深化社会分工是数字经济加强城市网络经济关联的重要路径。调节效应分析表明,地方政府紧密协作和多中心空间形态的网络型城市群结构能够显著强化数字经济提升城市网络中心性的边际效应。因此,数字经济赋能城市网络不仅要重视平台分工网络构建,更要加快推进政务互联互通与网络型城市群建设。

From the perspective of social division of labor,this paper examines the theoretical mechanism of digital economy shaping urban networks from both technical and organizational levels,and empirically tests it by matching the 2011-2019 China City Statistical Yearbook with the“headquarters-branches”institutional data of listed companies.The research found that the digital economy significantly enhances urban network centrality,which is still valid after considering factors such as index measurement errors,endogeneity issues,and exogenous policy shocks;Compared to attracting external investments,the digital economy enhances the effectiveness of cities in investing to external cities more effectively.Mechanism test indicates that deepening social division of labor is an important path for digital economy to strengthen the connection between urban network economy.The analysis of regulatory effects indicates that close collaboration between local governments and network-based urban agglomeration structure with multi center spatial forms can significantly strengthen the marginal effect of digital economy on enhancing urban network centrality.Therefore,empowering urban networks with the digital economy not only requires attention to the construction of platform division networks,but also requires accelerating the promotion of government connectivity and the construction of network-based urban agglomerations.