我国产业数字化对提高碳生产率作用的影响研究——基于产业结构优化与环境规制效应的考量

Research on the Impact of Industrial Digitalization on Improving Carbon Productivity in China——Consideration of industrial structure optimization and environmental regulation effects

数字化作为我国经济发展新动力,在实现“双碳”目标中发挥着关键作用,成为推动经济高质量发展的重要引擎。本文基于2013-2021年省级面板数据,验证了产业数字化对碳生产率的影响。研究发现:产业数字化促进了碳生产率的提升,且在一系列稳健性检验基础上仍然成立;分位数回归结果发现:东、中、西部地区在碳生产率差异下,产业数字化所发挥的作用均随着碳生产率的提高而提高。且对于中、西部地区,在较低碳生产率水平下,这种促进作用大于东部;产业结构在产业数字化对碳生产率的作用机制中起明显的中介效应;环境规制在产业数字化与碳生产率之间的正向关系存在双门槛效应,即随着环境规制强度的提高,产业数字化对碳生产率的促进作用先增强后减弱。基于此,要积极推进产业数字化进程、加快产业结构优化升级、循序渐进推进环境规制政策落实。

Digitalization,as the new driving force of China’s economic development,plays a key role in achieving the“dual-carbon”goal and has become an important engine for promoting high-quality economic development.This paper verifies the impact of industrial digitalization on carbon productivity based on provincial panel data from 2013-2021.The study finds that industrial digitization promotes the increase of carbon productivity,and it still holds on the basis of a series of robustness tests.The results of quantile regression show that:The role of industrial digitalization increases with carbon productivity under the difference of carbon productivity in the eastern,central and western regions,and the role of Industrial digitalization is greater than that of the eastern region under the lower level of carbon productivity;industrial structure plays an obvious mediating effect in the mechanism of industrial digitalization on carbon productivity;There is a double-threshold effect in the positive relationship between industrial digitalization and carbon productivity,that is,the role of industrial digitalization on carbon productivity increases first and then decreases with the increase of the intensity of environmental regulation.Based on this,it is necessary to actively promote the process of industrial digitalization,accelerate the optimization and upgrading of industrial structure,and gradually promote the implementation of environmental regulation policies.