摘要
基于中国280个地级市2011-2019年的平衡面板数据,通过构建基准回归模型、中介效应模型和非线性门槛回归模型,探究了数字经济对城市经济差距的影响作用与机制,并考察了数字经济与政府财政支持的门槛效应。结果表明:在样本期内,数字经济显著加剧了城市经济的不平衡,并且数字经济的“鸿沟效应”具有明显的地区异质性与阶段性特征,这主要由消费扩张、对外贸易扩大的中介传导机制所致;数字经济水平对城市经济差距的影响呈非线性特征,存在数字经济发展水平与政府科技财政支持力度的双门槛效应。
Based on the balanced panel data of 280 prefecture-level cities in China from 2011 to 2019,this paper constructs linear regression,mediating effect and nonlinear threshold regression models to explore the effect and mechanism of digital economy on urban economic gap,and examine the threshold effect of digital economy and government financial support.The results show that during the sample period,the digital economy has intensified the urban economic imbalance,and the gap effect of digital economy has obvious regional heterogeneity and periodic characteristics.Through mechanism discussion,this influence of digital economy on urban economic gap is mainly realized by the intermediary transmission mechanism of consumption expansion and foreign trade expansion.In addition,the impact of digital economic on urban economic gap is nonlinear,and there is a double threshold effect between the level of digital economic development and the government’s financial support for science and technology.
作者
程中海
王艺梦
王卓
CHENG Zhong-hai;WANG Yi-meng;WANG Zhuo
出处
《城市问题》
CSSCI
北大核心
2022年第10期93-103,共11页
Urban Problems
基金
国家自然科学基金项目(71863031)——“宏观审慎政策与货币政策协同向实效应研究”。
关键词
数字经济
城市
地区经济差距
共同富裕
digital economy
city
regional economic disparities
common prosperity
