摘要
本文利用我国2003—2019年285个城市面板数据,基于“两化融合(信息化与工业化融合)试验区”这一准自然实验构建渐进双重差分(DID)模型,实证分析了两化融合对城市绿色全要素生产率(GTFP)的影响及其作用机制。研究发现,两化融合显著提升了城市GTFP,在采用倾向得分匹配双重差分(PSM-DID)等方法进行稳健性检验之后,该结论依旧成立。政策效果动态分析表明,两化融合对城市GTFP的推动作用不存在政策时滞性,而且具有持续性。两化融合可以通过促进投资要素集聚、增加地方政府配套科技支出的方式提升城市GTFP。异质性分析表明,对于中西部地区城市、非中心城市以及科教发展水平较低的城市而言,两化融合对城市GTFP提升效果更强。本文为工业信息化转型背景下推动绿色经济发展提供了理论与实践参考。
Based on the panel data of 285 cities in China from 2003 to 2019,this paper uses the quasi-natural experiment of“integration of industrialization and informatization(integration of informatization and industrialization)”to build a progressive double difference(DID)model,and empirically analyzes the impact of integration of industrialization and industrialization on urban green total factor production rate(GTFP)and its mechanism.The study found that the integration of industrialization and industrialization has significantly improved the urban GTFP,and this conclusion is still valid after the robustness test is carried out with the method of tendency score matching double difference(PSM-DID).The dynamic analysis of policy effects shows that the promotion of the integration of industrialization and industrialization on urban GTFP has no policy lag and is sustainable.The integration of industrialization and industrialization can improve urban GTFP by promoting investment agglomeration and increasing local government supporting science and technology expenditure.Heterogeneity analysis shows that,the integration of industrialization and industrialization is more effective in improving the GTFP of cities in the central and western regions,non-central cities and cities with low science and education development level.This paper provides theoretical and practical reference for promoting the development of green economy under the background of industrial informatization transformation.
作者
李政
孙圣涛
刘丰硕
LI Zheng;SUN Shengtao;LIU Fengshuo(School of Economics,Liaoning University,Shenyang,110136;School of Economics,Jilin University,Changchun,130012;Industrial Quality Research Department,Ministry of Industry and Information Technology Electronic 5th Research Institute,Guangzhou,510000)
出处
《中国经济问题》
CSSCI
北大核心
2023年第5期148-163,共16页
China Economic Studies
基金
国家社科基金重点项目(22AZD032)
教育部重点研究基地重大项目(22JJD790025)。
关键词
信息化与工业化融合
GTFP
投资要素集聚
政府科技支出
integration of informatization and industrialization
GTFP
investment agglomeration
government expenditure on science and technology
