数字经济的碳减排效应及机制研究

Research on Carbon Emission Reduction Effect and Mechanism of Digital Economy

数字经济作为一种新兴经济形态,会对环境产生重要影响。选用2010~2020年我国省级面板数据,实证分析数字经济对碳排放强度的影响及影响机制。结果表明,数字经济具有碳减排效应,可以显著降低碳排放强度,创新要素错配在数字经济降低碳排放强度的过程中产生“遮掩效应”,削弱数字经济的碳减排效应。进一步分析发现,随着环境规制的增强,数字经济对碳排放强度的抑制作用边际递增;数字经济在东部和中部地区可以显著降低碳排放强度,在西部地区则对碳排放强度无明显影响,表现出区域异质性。应充分利用数字经济的优势,发挥其碳减排效应,降低经济对环境产生的不利影响,助力低碳目标和可持续发展战略目标的实现。Digital economy, as a new economic form, will have an important impact on the environment. Provincial panel data from 2010 to 2020 were selected to empirically analyze the impact of digital economy on carbon emission intensity and its influencing mechanism. The results show that the digital economy has a carbon emission reduction effect, which can significantly reduce carbon emission intensity, and the mismatch of innovation elements will produce a “masking effect” in the process of reducing carbon emission intensity of the digital economy, weakening the carbon emission reduction effect of the digital economy. Further analysis shows that with the enhancement of environmental regulation, the marginal inhibition effect of digital economy on carbon emission intensity increases;digital economy can significantly reduce carbon emission intensity in eastern and central regions, but has no significant impact on carbon emission intensity in western regions, showing regional heterogeneity. We should make full use of the advantages of the digital economy, give full play to its carbon emission reduction effect, reduce the adverse impact of the economy on the environment, and contribute to the realization of low-carbon goals and sustainable development strategies.