文献类型：期刊文献

中文题名：低碳城市建设能够提升城市绿色技术创新吗?——来自准自然实验的证据

英文题名：Can Low-carbon City Construction Promote Urban Green Technology Innovation?--Evidence from a Quasi-natural Experiment

作者：郭丰[1];杨上广[1];柴泽阳[2];储勇[3]

机构：[1]华东理工大学商学院,上海200237;[2]重庆师范大学经济与管理学院,重庆401331;[3]中共中央党校(国家行政学院)经经济学教研部,北京100091

年份：2023

卷号：37

期号：1

起止页码：40

中文期刊名：软科学

外文期刊名：Soft Science

收录：CSTPCD;;国家哲学社会科学学术期刊数据库;北大核心:【北大核心2020】；CSSCI:【CSSCI2023_2024】；

基金：国家自然科学基金项目(71874054);国家社会科学基金项目(21AZD036、19CJL027)。

语种：中文

中文关键词：低碳城市;城市绿色技术创新;渐进双重差分

外文关键词：low-carbon city;urban green technology innovation;progressive difference in differences

摘要：基于2005-2018年中国233个城市的绿色发明专利数据,以低碳城市试点政策作为准自然实验,运用渐进双重差分方法评估低碳城市建设对城市绿色技术创新的影响,并分析了其中的作用机制和异质性特征。结果发现:(1)低碳城市建设显著提升了城市绿色技术创新水平,经过一系列稳健性检验后,上述结论依然成立;(2)机制分析发现,低碳城市建设通过增加科技人才和缓解融资约束提升了城市绿色技术创新水平;(3)异质性分析表明,低碳城市建设在低绿色技术创新水平城市以及资源型城市未能实现有效的正向促进作用,经济发展、科技支出、人力资本水平与人口密度四种城市特征具有正向调节效应。
Based on the green invention patent data of 233 cities in China from 2005 to 2018,taking the low-carbon city pilot policy as a quasi-natural experiment,this paper evaluates the impact of low-carbon city construction on urban green technology innovation by progressive difference in differences method,and analyzes the impact mechanism and the characteristics of heterogeneity.Results show that,low-carbon city construction significantly improves the level of urban green technology innovation,after a series of robustness tests,the above conclusions are still valid.The mechanism analysis shows that low-carbon city construction improves the level of urban green technology innovation by increasing scientific and technological talents and alleviating financing constraints.Result of heterogeneity shows that low-carbon city construction fails to achieve effective positive promoting effect in cities with low green technology innovation level and resource-based cities.The four urban characteristics of economic development,science and technology expenditure,human capital level and population density have positive moderating effects.