数字经济、绿色创新与新型城镇化

Digital Economy,Green Innovation and New Urbanization

本文基于2011~2020年267个地级市面板数据深入剖析数字经济对新型城镇化的影响效应,并从绿色创新视角探究数字经济影响新型城镇化的作用渠道。研究发现,数字经济显著提升了我国新型城镇化发展水平,在工具变量估计、排除外生政策冲击等稳健性检验后该结论依旧成立。基于地理位置和城市特征的异质性分析显示,沿海城市和非资源型城市的提升效果更为明显。机制检验表明,不同于非核心内容创新,数字经济能够通过突破性绿色创新助推新型城镇化高质量发展。进一步分析显示,数字经济对经济城镇化和社会城镇化发展具有显著促进作用,对人口城镇化和环境城镇化发展的提升效果并不明显。本文结论对深化数字经济发展和协调城乡二元关系提供重要启示。

Based on the panel data of 267 prefecture-level cities from 2011 to 2020,this paper deeply analyzes the impact of digital economy on new urbanization,and explores the channel through which digital economy affects new urbanization from the perspective of green innovation.It is found that the digital economy has significantly improved the development level of new urbanization in China,and this conclusion still holds after the robustness tests such as the estimation of instrumental variables and the exclusion of exogenous policy shocks.Heterogeneity analysis based on geographical location and urban characteristics shows that coastal cities and non-resource-based cities have more obvious improvement effects.The mechanism test shows that,different from noncore content innovation,digital economy can boost the high-quality development of new urbanization through radical green innovation.Further analysis shows that the digital economy has a significant role in promoting the development of economic urbanization and social urbanization,but the improvement effect on the development of population urbanization and environmental urbanization is not obvious.The conclusion of this paper provides important enlightenment for deepening the development of digital economy and coordinating the dual relationship between urban and rural areas.