中国城市数字经济关联网络的结构特征与内生机制分析  

The Structural Characteristics and Endogenous Mechanism Analysis of China’s Urban Digital Economy Association Network

作　　者：方若楠 崔兴华 闫中晓 FANG Ruo-nan;CUI Xing-hua;YAN Zhong-xiao(School of Economics and Finance,Jimei University,Xiamen 361021,China;School of Economics,Jiangxi University of Finance and Economics,Nanchang 330013,China)

机构地区：[1]集美大学财经学院,福建厦门361021 [2]江西财经大学经济学院,江西南昌330013

出　　处：《现代财经(天津财经大学学报)》2025年第2期22-38,共17页Modern Finance and Economics:Journal of Tianjin University of Finance and Economics

基　　金：教育部人文社会科学研究青年基金项目(23YJC790023);福建省社会科学基金青年项目(FJ2023C041)。

摘　　要：数字经济时代,各种功能要素的空间流动能够重塑城市间的数字经济关联,是城市数字经济关联网络的新动力。研究基于“流空间”视角,从技术流、数据环境流和产业融合流三个维度构建数字经济关联强度指标,以185个地级以上城市为研究单元,刻画多维要素流动下中国城市数字经济关联网络的时空格局演化、拓扑结构特征,并进一步揭示该网络的内生动力机制。研究发现:中国城市数字经济关联网络呈现出层级结构明显、空间非均衡和关联紧密的网络格局。进一步地,中国城市数字经济关联网络“小世界”特征明显,社群间的数字经济关联开始超越“单一跨社群数字经济关联”向“多元跨社群数字经济关联”转变;网络兼具“层级扁平”与“跨圈层交互”的双重特征,相对稳定性与结构流动性并存;网络的核心—边缘结构正面临结构性调整,核心结构与边缘结构呈明显分化,极化效应凸显。此外,“能者居之”的吸引力和“强者恒强”的累积优势是中国城市数字经济关联网络形成的内在双驱力。研究结果能够为新发展格局下建设城市体系多维网络关系,促进中国数字经济和区域经济一体化融合发展提供可资参考的政策建议。In the era of digital economy, the spatial flow of various functional elements is the underlying logic of resource allocation, and it is the new driving force of urban digital economy association network. From the perspective of “flow space”, this paper constructs an index of digital economy association strength based on three dimensions: technology flow, data environment flow and industrial convergence flow. With 185 cities above prefecture level as the research unit, this paper describes the spatial-temporal pattern evolution and topological structure characteristics of China's urban digital association network under multi-dimensional factor flow, and further reveals the endogenous dynamic mechanism of the network. It is found that the digital economy association network of Chinese cities has formed a network pattern with obvious hierarchical structure, spatial disequilibrium and close association of digital economy. Furthermore, the characteristics of “small world” in Chinese urban digital economy association network are obvious, and the digital economy association among communities begins to transform from “single cross-community digital economy association” to “multiple cross-community digital economy association”. The network has the dual characteristics of “level flat” and “layer interaction”, and the relative stability and structural fluidity coexist. The core-edge structure of the network is facing structural adjustment, the core structure and the edge structure are obviously differentiated, and the polarization effect is prominent. In addition, the attraction of “only those who are capable can occupy the position” and the cumulative advantages of “the strong always win” are the internal dual drives of the formation of digital association network in Chinese cities. The research results of this paper can provide policy suggestions for constructing multi-dimensional network relations of urban system under the new development pattern and promoting the integrated development o

关 键 词：流空间 数字经济 空间关联网络 核心—边缘结构 

分 类 号：F124[经济管理—世界经济]