数字经济、公众环境关注与城市绿色技术创新

Digital Economy,Public Environmental Concern and Urban Green Technology Innovation

数字经济赋能中国经济能够有效促进节能减排,助力应对气候变化,推动经济高质量发展。文章基于中国2011—2019年280个城市的面板数据,在使用与满足理论、创新扩散理论和六度空间理论的框架下,构建固定效应模型、中介效应模型、门槛模型和空间杜宾模型探讨了数字经济、公众环境关注对绿色技术创新的作用机制。研究结论表明:数字经济对绿色技术创新有明显的提升作用,在经过一系列稳健性检验后结论仍然成立。公众环境关注是数字经济赋能绿色技术创新提升的重要中介。数字经济对绿色技术创新的作用存在非线性递增的特征,并且具有“本地—邻地”空间溢出效应。研究可为双碳目标下数字经济和绿色经济的协同发展提供一定的边际经验支持。

The digital economy can effectively promote energy conservation and emissions reduction,help tackle climate change,and promote high-quality economic development.Based on the panel data of 280 cities in China from 2011 to 2019,we use fixed effects model,mediating effects model,threshold model and spatial Durbin model to explore the mechanism of digital economy and public environmental concern on green technology innovation under the framework of use and satisfaction theory,innovation diffusion theory and six-dimensional space theory.The results show that digital economy has a significant improvement effect on green technology innovation,and the conclusion is still valid after a series of robustness tests.Public environmental concern is an important intermediary of enabling green technology innovation in digital economy.The effect of digital economy on green technology innovation is nonlinear and increasing,and there is a"local-neighborhood"spatial spillover effect.This study can provide some marginal empirical support for the collaborative development of digital economy and green economy under the dual carbon target.