摘要
在理论分析城市基础设施对创新作用机理的基础上,运用2008~2018年中国35个大中城市面板数据,构建城市基础设施评价指标体系并利用熵值法测算综合指数,采用中介效应模型和面板门限回归模型实证检验城市基础设施、人才集聚与创新之间的关系。结果发现:城市基础设施不仅直接正向影响创新,而且通过人才集聚间接影响创新,中介效应占总效应的比重为22.2%,且东、中、西部的中介效应具有显著差异性。各类样本城市基础设施对创新的门限效应各不相同,随着城市基础设施优化升级,全样本和东、中部基础设施对创新的促进作用呈先上升后下降规律,西部具有边际效益递增规律。
This paper firstly analyzes how urban infrastructure influences innovation theoretically,and then designs the evaluation index system of urban infrastructure and further uses entropy method to calculate comprehensive index.Based on the panel data of 35 large and medium-sized cities in China from 2008 to 2018,it empirically analyzes the relationship among urban infrastructure,talent agglomeration and innovation by constructing mediation effect model and panel threshold regression model.Result shows that urban infrastructure not only directly affects innovation,but also indirectly affects innovation through the mediator,talent agglomeration and the proportion in the total effect is 22.2%,and the mediation effects in the eastern,the middle and the western cities are significantly different.The threshold effect of urban infrastructure on innovation considerably varies in four different group cities.For the whole sample cities,the eastern cities,and the middle cities,with the optimization and upgrading of urban infrastructure,its promotion effect on innovation first increases and then decreases,while the marginal effect keeps rising for the western cities.
作者
张所地
闫昱洁
李斌
ZHANG Suo-di;YAN Yu-jie;LI Bin(Management Engineering Research Center,Shanxi University of Finance and Economics,Taiyuan 030006)
出处
《软科学》
CSSCI
北大核心
2021年第2期7-13,共7页
Soft Science
基金
国家自然科学基金项目(70973072)
国家自然科学基金青年项目(71904112)
教育部人文社会科学基金青年项目(15YJC630187)。
关键词
城市基础设施
人才集聚
创新.
urban infrastructure
talent agglomeration
innovation
