数字经济发展对工业绿色转型的影响研究--基于中国城市的经验证据

Research on the Impact of Digital Economy Development on Industrial Green Transformation--Based on Empirical Evidence from Chinese Cities

基于2011-2019年中国284个地级以上城市的面板数据,采用熵权法、超效率SBM模型测算数字经济发展指数值与工业绿色转型水平,运用双向固定效应模型、门槛模型以及空间模型等多维度实证检验数字经济发展对工业绿色转型的影响特征。结果表明:①通过排除宏观系统性环境影响以及引入工具变量的稳健性检验,数字经济发展能够驱动工业绿色转型;②数字经济发展对工业绿色转型的影响存在“边际效应”递增的非线性效应与空间溢出效应;③在区域异质性上,京津冀城市群、长三角城市群等东部发达地区相较于成渝城市群、中原城市群等中西部欠发达地区的数字经济发展红利更大,对工业绿色转型作用更为显著。为此,应加快建设完善数字化基础设施,搭建“数字基建”一体化布局,充分发挥数字经济辐射带动作用,并依据地区比较优势,实施差异化发展路径。

Based on the panel data of 284 cities above the prefecture level in China from 2011 to 2019,this paper measures the value of the digital economy development index and the level of industrial green transformation by the entropy weight method and the super-efficiency SBM model.And then,it empirically tests the characteristics of the impact of the development of the digital economy on industrial green transformation by the two-way fixed effect model,threshold model,and spatial mod-el.Results show that,by excluding the macro systemic environmental impact and introducing the robustness test of instrumental variables,the development of the digital economy can drive the green transformation of industry.The impact of the development of the digital economy on the green transformation of the industry has a non-linear effect of increasing"marginal effect"And spatial spillover effects.In terms of regional heterogeneity,the eastern developed regions such as the Beijing-Tianjin-Hebei clusters and the Yangtze River Delta urban agglomeration have greater dividends for digital economy development than the Chengdu-Chongqing urban agglomeration and the Central Plains urban agglomeration.The role of industrial green transformation is more significant.In the end,it is necessary to speed up the construction and improvement of digital infrastructure,build an integrated layout of"digital infrastructure",give full play to the radiating role of the digital economy,and implement differentiated development paths based on regional comparative advantages.