摘要
文章利用2014—2020年全国30个省(市、区)的面板数据,运用因子分析测算数字经济发展水平综合评价指数;利用熵值法计算各省创新能力水平;通过门槛回归和分位数回归检验数字经济对高技术产业创新能力的非线性效应;运用SDM模型考察数字经济发展水平对高技术产业的创新能力产生的空间效应。发现数字经济发展水平对高技术产业的创新能力的正向影响呈边际递减,并且数字经济对创新能力具有正向的直接效应和负向的间接效应。
In this paper,drawing on the panel data of 30 provinces,cities and autonomous regions in China from 2014 to 2020,we use principal component analysis to determine the weight of variables so as to calculate the score of digital economy.We use the entropy method to calculate the innovation ability level of the 30 provinces,cities and autonomous regions.The nonlinear effect of digital economy on the innovation ability of high-tech industry is tested by threshold regression and quantile regression,and the spatial effect of digital economy on the innovation ability of high-tech industry is investigated by Spatial Dubin Model(SDM).The results show that the level of digital economy development has a marginal decreasing positive effect on the innovation ability of high-tech industry,and digital economy has positive direct effect and negative indirect effect on the innovation ability.
作者
施卫东
张雅婕
SHI Wei-dong;ZHANG Ya-jie(School of Economics and Management,Southeast University,Nanjing,Jiangsu 211189)
出处
《商学研究》
2022年第4期16-26,共11页
Commercial Science Research
关键词
数字经济
创新能力
非线性效应
空间效应
digital economy
innovation ability
nonlinear effect
spatial effect
