新结构经济学视角下的数字经济与碳减排关系研究

Research on the Relationship Between Digital Economy and Carbon Emissions Reduction:From the Perspective of New Structural Economics

从新结构经济学视角,利用2007—2015年全球91个经济体的面板数据,通过面板双固定模型实证检验数字经济对二氧化碳排放的影响。研究表明,数字经济对二氧化碳排放具有非线性影响;以经济发展阶段为门槛变量时,随着人均GDP的提高,数字经济对二氧化碳减排的作用显著增强;以产业结构为门槛值时,数字经济与产业结构匹配程度越高,则越有利于二氧化碳减排;此外,当一国(地区)实行违背比较优势的发展战略时,会抑制数字经济发展,且进一步导致二氧化碳排放量的增加。由此验证了新结构经济学视角下的数字经济与二氧化碳排放的发展、运行与转型问题,并得到相关政策启示。

Under the theoretical framework of new structural economics,this paper empirically tests the impact of digital economy on carbon dioxide emissions using a panel data of 91 economies worldwide from 2007—2015 through a double stationary model. The results show that the digital economy has a non-linear effect on COemissions;when the stage of economic development is used as the threshold variable,the effect of digital economy on COemission reduction is significantly reduced with the increase of GDP per capita;when the industry structure is used as the threshold value,the higher the degree of matching between the digital economy and the industry structure,the more beneficial to COemission reduction;in addition,when a economy implements a development strategy contrary to its comparative advantage,it will reduce the development of the digital economy and further lead to an increase in COemissions. Thus,this paper verifies the development,operation and transformation of the digital economy and COemissions from the perspective of new structural economics.