摘要
数字经济是驱动区域绿色发展的重要力量,也是赋能长三角地区高质量一体化的战略需求。文章采用计量回归模型和链式中介模型探究了2011—2022年长三角地区数字经济对绿色发展效率的作用机制。研究发现:(1)长三角地区数字经济和绿色发展效率水平均快速提升,两者皆呈现出显著的空间非均衡发展特征。(2)数字经济能够通过城市合作创新、产业结构升级和绿色技术创新三者的并行中介路径和链式中介路径正向影响绿色发展效率,总中介效应系数为0.861,其中独立中介效应和链式中介效应分别占70.15%和29.85%。(3)数字经济对绿色发展效率的作用强度具有城市异质性,高等级城市的数字经济发展更能促进城市绿色发展效率的提升。
Digital economy is an important force driving the regional green development and a strategic need to empower the high-quality integration in the Yangtze River Delta(YRD)region.This paper uses the methods of econometric regression model and chain mediation model to explore the mechanism of digital development on the green development efficiency in the Yangtze River Delta region.It's found that:1)Both digital development and green development efficiency in the YRD region are rapidly improving,and have significant spatial and temporal heterogeneity and non-equilibrium development characteristics.2)The digital economy can positively affect the green development efficiency through the parallel intermediary paths and chain intermediary paths of urban intercity cooperation on innovation,industrial structure upgrading and green technological innovation,with the total intermediary effect coefficient of 0.861,and the independent intermediary effect and chain intermediary effect accounting for 70.15%and 29.85%,respectively.3)The impact intensity of the digital economy on the green development efficiency has heterogeneity in different grades of cities,the digital economy development is more able to promote the improvement of urban green development efficiency in high-grade cities.The research conclusions can provide decision-making references for the coordinated development of digitalization and greening in the Yangtze River Delta region and other areas.
作者
陈鸿基
胡森林
曾刚
陈鹏鑫
王嘉炜
万媛媛
CHEN Hongji;HU Senlin;ZENG Gang;CHEN Pengxin;WANG Jiawei;WAN Yuanyuan(The Center for Modern Chinese City Studies,East China Normal University,Shanghai 200062,China;Institute of Urban Development,East China Normal University,Shanghai 200062,China;School of Geographic Sciences,East China Normal University,Shanghai 200062,China)
出处
《经济地理》
北大核心
2025年第5期13-22,共10页
Economic Geography
基金
国家社会科学基金重大项目(24&ZD067)
国家自然科学基金重点项目(42130510)
教育部人文社会科学重点研究基地重大项目(22JJD790017)。
关键词
数字经济
绿色发展效率
多重中介效应
城市合作创新
产业结构升级
绿色技术创新
长三角地区
digital economy
green development efficiency
multiple mediating effects
urban innovation cooperation
industrial structure upgrading
green technological innovation
the Yangtze River Delta Region
