摘要
在数字经济引领高质量发展的背景下,智慧城市试点政策成效显著。基于2010年-2019年上市公司数据,将智慧城市试点政策作为一项准自然实验,采用多期双重差分法和中介效应模型,实证检验智慧城市建设对企业绿色技术创新影响和机制。研究表明:智慧城市建设显著提升了企业绿色技术创新,通过替换被解释变量和更换回归方法后检验结果依然稳健。异质性分析显示,智慧城市建设对高新技术企业和生产效率较高企业的促进作用较为明显。影响机制检验显示,智慧城市建设通过技术创新和数字化两种途径提升企业绿色技术创新。
In the context of high-quality development led by digital economy,smart city pilot policies have achieved remarkable results.Based on the data of listed companies from 2010 to 2019,this paper takes smart city policy as a quasi-natural experiment,uses the multi-period difference-in-differences method and mediating effect model to empirically test the impact and mechanism of smart city construction on corporate green technology innovation.The research shows that smart city construction significantly improves the green technology innovation of enterprises,and the test results are still robust after replacing the explained variables and the regression methods.Heterogeneity analysis shows that smart city construction has a more obvious promotion effect on high-tech enterprises and enterprises with high production efficiency.The test of influence mechanism shows that smart city construction promotes enterprise green technology innovation through technological innovation and digitalization.
作者
屈凯
张亚朋
刘银玲
Qu Kai;Zhang Yapeng;Liu Yinling(Department of Management,Yulin University,Yulin 719000,China)
出处
《环境科学与管理》
CAS
2023年第9期174-179,共6页
Environmental Science and Management
基金
陕西省哲学社会科学重大理论与现实问题研究2022年度一般项目(2022HZ1316,2022HZ1314)
陕西省教育厅2022年度一般专项科研计划项目(22JK0232,22JK0230)
榆林学院博士科研启动基金项目(22GK27)
2022年度榆林市社科专项资金规划项目(YLSKGH2022-06,YLSKGH2022-32)。
