基于头部企业的城市数字经济网络空间结构及其影响因素  

China's Urban Digital Economic Network and Its Influencing Factors:From the Perspective of Top-tier Digital Enterprises

作　　者：陈博 朱华晟 代嘉欣 刘若彬 CHEN Bo;ZHU Huashen;DAI Jiaxin;LIU Ruobin(Faculty of Geographical Science,Beijing Normal University,Beijing 1000875,China;School of Management,Xi'an University of Architecture and Technology,Xi'an 710055,Shaanxi,China)

机构地区：[1]北京师范大学地理科学学部,北京100875 [2]西安建筑科技大学管理学院,陕西西安710055

出　　处：《经济地理》2024年第10期108-116,共9页Economic Geography

基　　金：国家自然科学基金项目(42071152)。

摘　　要：文章利用2020年中国新经济500强企业数据,运用社会网络分析和负二项回归方法,刻画中国城市数字经济网络结构特征,并探讨了其影响因素。结果表明:(1)数字经济网络分布呈现东密西疏的不均衡特征,形成了以“北京—上海—深圳”为顶点的三角形网络骨架。(2)数字经济网络具有极化与扁平化共存的特征,网络联系的地域性较弱。(3)城市出度、中介中心度呈现明显的“核心—边缘”结构,其中北京是网络的支配与控制中心,深圳、上海和杭州为次级核心城市。入度相对均衡,基本遵循工业经济时代的城市等级体系。(4)行政级别、经济发展水平、数字技术、市场以及产业政策对城市网络度具有正向影响,且对数字经济发展水平不同的城市的影响存在明显差异。Based on the data of China's top 500 enterprises in 2020,this paper employs the methods of social network analysis and negative binomial regression to depict the structure of China's digital economy network and explore its influencing factors.The results show that:1)The distribution of the digital urban network exhibits an unbalanced characteristic which is dense in the east of China and sparse in the west of China,and form a triangle network skeleton with Beijing-Shanghai-Shenzhen as the apex.2)The urban digital economy network shows characteristics of both polarization and flattening,with weak regionality in network connections.3)Out-degree and betweenness centralities display a clear core-periphery structure,with Beijing as the dominant and control center of the digital economy network,Shenzhen,Shanghai and Hangzhou as secondary core cities.In-degree centrality is relatively balanced,basically following the urban hierarchy of the industrial economy era.4)Administrative level,economic development level,digital technology,market and industrial policies have a positive impact on urban network degree,and the impact on cities with different levels of digital economy development is significantly different.

关 键 词：数字经济 网络中心度 头部企业 空间结构 城市等级 产业政策 

分 类 号：F062.3[经济管理—政治经济学]