摘要
研究目标:高铁开通对城市创新水平的影响及其机制。研究方法:基于知识生产“面对面交流”理论,构建实证模型,利用2003~2016年地级市面板数据和双重差分法进行回归分析。研究发现:基准回归结果表明高铁开通显著地提高了高铁沿线非节点城市的创新水平;动态效应分析和工具变量估计仍然支持这一结论。异质性分析发现,对于高铁沿线非节点城市,与节点城市的距离越近、对应的节点城市创新水平越高,高铁开通对其创新水平的提升作用越大,且主要发生在东部和中部地区,表明高铁开通具有知识溢出效应。进一步排除竞争性假说,证实了知识溢出效应。研究创新:从知识溢出效应角度考察高铁开通对城市创新水平的影响机制,并利用工具变量方法缓解了已有研究中的内生性问题。研究价值:有助于全面评价大规模高铁建设的经济效应,同时为高铁时代地区间如何创新协同发展提供了丰富的政策启示。
Research Objectives:The impact of high-speed rail opening on the level of urban innovation and its mechanism.Research Methods:Based on the"face-to-face commiinication"theory of knowledge production,this paper constructs an empirical model.and makes regression analysis by using the data of prefecture level city panel in 2003?2016 and the double difference method.Research Find ing:The benchmark regression results show that the high-speed rail opening has significantly im proved the level of innovation in non-node cities along the high-speed rail.Dynamic effect analysis and instmmcntal variable estimates still support this conclusion.The heterogeneity analysis shows that for lion-node cities along the high-speed rail,the closer the distance to the node city and the higher the innovation level of the corresponding node city,the greater the role of high-speed rail o-pening in promoting its innovation level,which mainly occurs in the eastern and central regions,indicating that the high-speed rail opening has knowledge spillover effect.Furthermore,the com petitive hypothesis is excluded and the knowledge spillover effect is confirmed.Research Innova tions:From the perspective of knowledge spillover effect,the mechanism of the impact of high speed rail opening on urban innovation level is investigated,and the instnimcntal variable method is used to alleviate the endogenous problems in existing research.Research Value:It will help to com prehensively evaluate the economic effects of large-scale high-speed rail construction,and provide rich policy inspiration for how to innovate aixl coordinate development in the high-speed rail era.
作者
何凌云
陶东杰
He Lingyun;Tao Dongjie(Economics School.Zhongnan University of Economics and Law;School of Finance and Public Administration.Hubei University of Economics)
出处
《数量经济技术经济研究》
CSSCI
CSCD
北大核心
2020年第2期125-142,共18页
Journal of Quantitative & Technological Economics
基金
教育部人文社科基金青年项目“老龄化背景下我国公共支出代际冲突的理论与实证研究”(17YJC790141)
“区域不平衡发展对幸福空间差异的影响研究”(18YJC790040)的资助。
关键词
高铁
创新
知识溢出
高质量发展
High-speed Rail
Innovation
Knowledge Spillover
High-quality Develop ment
