摘要
采用面板门槛回归模型,基于中国277个地级市2003-2018年面板数据,以金融发展水平和市场活力为门槛变量,实证检验互联网对城市创新差距的非线性影响。结果发现:中国互联网的普及和使用有效地降低了城市之间的创新差距,并且移动互联网表现出了更强的作用;在控制其他变量的基础上,互联网对城市创新差距的影响显著存在基于金融发展水平和市场活力的“单门槛效应”;城市只有跨越相应的金融发展水平和市场活力的门槛,互联网才能有效地促进中小城市创新能力的提升,缩小城市创新差距。
Based on panel Threshold Regression model and panel data of 277 cities in China from 2003 to 2018,this paper empirically tests the nonlinear impact of Internet on the gap of urban innovation with level of financial development and market vitality as the threshold variables.Results show that,the popularity and use of the internet in China has effectively reduced the gap of urban innovation,and the mobile internet has played a stronger role.On the basis of controlling other variables,there is a"single threshold effect"between the internet and the gap of urban innovation gap,by the level of financial development and market vitality as the threshold variables.Only when urban level of financial development and market vitality cross the corresponding threshold,can the internet effectively promote the innovation capacity of small and medium-sized urbans and close the gap of urban innovation.
作者
刘帅
李琪
徐晓瑜
王璐瑶
LIU Shuai;LI Qi;XU Xiao-yu;WANG Lu-yao(School of Economics and Finance,Xi'an Jiaotong Unirersiy,Xi'an 710061;School of Management,Xi'an University of Architeture and Technology,Xi'an 710055)
出处
《软科学》
CSSCI
北大核心
2023年第1期50-57,68,共9页
Soft Science
基金
陕西省软科学研究计划一般项目(2021KRM065)
陕西省自然科学基础研究计划项目(2021JQ-519)。
关键词
互联网
城市创新差距
金融发展水平
市场活力
门槛回归模型
internet
gap of urban innovation
level of financial development
market vitality
Threshold regression model
