热带地理2025，Vol.45Issue(11)：2003-2018,16.DOI:10.13284/j.cnki.rddl.20250383
长三角数字经济网络格局韧性测度及其影响因素
Resilience Measurement of the Yangtze River Delta Digital Economy Network and Its Influencing Factors
摘要
Abstract
The digital economy network can enhance the stability and risk resistance of industrial chains,thereby playing a crucial and strategic role in addressing regional development imbalances,improving resource allocation,and promoting high-quality,integrated economic growth across urban clusters.This study used a comprehensive dataset of digital economy development indicators for 41 cities in the Yangtze River Delta from 2012 to 2022.It systematically integrated measurements of the digital financial inclusion index and Internet development levels to capture and analyze the dynamic evolution of digital economy growth in the region.A modified gravity model was employed to construct a digital economy correlation matrix to quantify intercity economic linkages.Furthermore,complex network analysis combined with computer simulation techniques was used to examine the temporal evolution of network resilience and its influencing factors.The results revealed that:1)During the study period,the network density of the Yangtze River Delta's digital economy increased by 0.245,and the regional development pattern shifted from a"single-core agglomeration"to a more diversified"multi-center linkage."Simultaneously,the frequency and intensity of interactions among cities increased significantly,while core cities strengthened their monopoly,allocation,and redistribution capacities over critical digital resources,reflecting a more optimized and coordinated network structure.2)Structural barriers within the digital economy network gradually diminished,while cross-industry and cross-regional collaborations intensified significantly,giving rise to an open collaborative network structure.Among the subgroups,Sector Ⅰ primarily functioned as an intermediary,whereas Sector Ⅳ served as the primary output core,indicating the transformation of the network's organizational form from a relatively closed internal cycle to a more open and interconnected system.3)Over the past decade,the network structure flattened and exhibited an overall disassortative mixing pattern.The facilitation of digital economy factor flows had improved,and the network structure had evolved from a"core-periphery"configuration to a three-tier"core-sub-core-periphery"pattern.Shanghai,Hangzhou,and Nanjing emerged as core cities,whereas Hefei and Wuxi developed into secondary hubs.4)Under random disruptions or attacks,the network collapsed when approximately 50％of its nodes were attacked.In random-attack scenarios,basic operations remained possible even when up to 85％of nodes were attacked.However,when critical nodes were deliberately targeted,the overall network performance declined rapidly,exposing inherent vulnerabilities.5)Significant differences in urban economic development,human capital agglomeration,and technological innovation drove the interregional flow of digital factors.The complementary development of information,talent,capital,and technology enhanced network connectivity and resilience.Geographical proximity was also a critical factor that influenced network resilience.These findings provide valuable theoretical and empirical support for enhancing the resilience of the Yangtze River Delta digital economy network,reinforcing the spillover effects of core cities,and promoting efficient cross-regional resource sharing and coordinated development.关键词
数字经济网络/韧性/社会网络分析/计算机仿真模拟/长三角Key words
digital economy network/resilience/social network analysis/computer simulation/the Yangtze River Delta分类
管理科学引用本文复制引用
许静,王德仁,庞婉晴..长三角数字经济网络格局韧性测度及其影响因素[J].热带地理,2025,45(11):2003-2018,16.基金项目
国家社会科学基金项目(23BJY198) （23BJY198）
甘肃省哲学社会科学重点委托项目(2024ZD012) （2024ZD012）
甘肃省高校青年博士支持项目(2025QB-052) （2025QB-052）
