数字经济促进绿色发展的机制研究——基于空间杜宾模型的实证分析

Research on the Mechanism of Digital Economy Promoting Green Development——Empirical Analysis Based on Spatial Durbin Model

发挥数字经济对绿色发展的促进作用,是推动我国经济高质量发展的重要途径。基于2011—2020年中国省级面板数据,运用空间杜宾模型、中介效应模型和面板门槛模型考察数字经济与绿色发展之间的关系。研究发现:数字经济对绿色发展有促进作用,且存在空间效应,这一结论在稳健性检验后仍成立;数字经济促进绿色发展有优化产业结构、推动技术创新两条途径;区域创新能力和城市化水平是数字经济促进绿色发展的约束条件,即存在门槛效应,数字经济对绿色发展的影响呈边际递增趋势。地区应推动数字经济发展,加强区域合作以充分发挥数字经济的正向空间溢出效应,助力绿色发展水平提高。

Giving full play to the role of digital economy in promoting green development is an important way to promote the high-quality development of China’s economy.Based on the panel data from 2011 to 2020,this paper uses the spatial Dubin model,the intermediary effect model and the panel threshold model to examine the relationship between the digital economy and green development.The study found that digital economy has a promoting effect on green development,and a spatial effect.This conclusion is still valid after the robustness test.The mechanism analysis shows that there are two ways for digital economy to promote green development:optimizing industrial structure and promoting technological innovation.The threshold analysis found that the regional innovation capacity and urbanization level are the constraints of digital economy to promote green development,that is,there is a threshold effect,and the impact of digital economy on green development shows a marginal increasing trend.We should promote the development of the digital economy,strengthen regional cooperation to fully leverage the positive spatial spillover effect of the digital economy,and help improve the level of green development.