数字经济、绿色创新与区域一体化

——以长三角城市群为例

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中图分类号：F49；F127 文献标识码：A 文章编号：1007-5097（2025）10-0022-13

Digital Economy，Green Innovation，and Regional Integration： Evidence from the Yangtze RiverDelta Urban Agglomeration

HE Shoukui， HU Chunjie （School of Economics and Management， Chongqing Jiaotong University，Chongqing 40oo74，China）

Abstract：Thedigital economyand greninnovationserveaspivotaldriving forces foradvancingregionalintegration. Based on panel data from 41 cities in the Yangtze River Delta urban aglomeration spanning 2O11-2O23，this study employstheverticalandhorizontal gradingmethod，spatialDurbinmodel （SDM），panel threshold model，andquantile modelto systematicallidentifythe spatial efects，nonlinear characteristics，and interactiverelationshipsbetweenthe digital economy，greeninnovation，andregional integration.The findingsreveal thatthedigitaleconomyexhibits significant spatialspilloverefects，withspillover intensityincreasingasgeographical distanceexpandsanddynamically evolving withregional integration levels，meanwhile，green innovation playsa crucialmediating roleasakeypathway through whichthedigitaleconomypromotes regionalintegration.Theimpactof thedigital economyonregionalintegration follwsaU-shapedevolutionarytrend，demonstratingstrengthenedeffctsinlaterstages，anditexhibitspositive synergisticinteractions with green innovationto jointlydriveregional integrated development.Consequently，thisstudy proposesoptimiingthespatialayoutofthedigitalconomy，hancinggreeninnovation'ssupportivecapacity，tablsng collaborative promotionmechanisms，and strengthening sustained momentum forregional integrateddevelopment.

Keywords： digital economy;green innovation; Yangtze River Deltaurban agglomeration;regional integration; spatial Durbinmodel（SDM）;panelthreshold model

一、引言及文献综述

党的二十大报告提出以城市群、都市圈为依托构建大中小城市协调发展格局，党的二十届三中全会强调完善区域一体化发展机制，构建跨行政区合作发展新机制。（剩余19517字）