摘要
实现碳达峰碳中和是一场系统性变革,需要全社会共同发力。数字经济作为推动经济高质量发展的新引擎,理应为推动实现碳达峰碳中和目标发挥重要作用。本文构建了一个内生增长模型,揭示了数字经济促进碳减排的新机制,并进行了实证检验。研究表明,数字经济发展具有显著的碳减排效应,在考虑变量选择偏误、剔除其他政策影响和容忍“不外生工具变量”等稳健性、内生性检验后该结论依然成立。机制分析发现,除技术进步和能源利用效率渠道以外,数字经济促进了技术多样化,为碳减排提供了更稳定的激励,且技术相关性越高,数字经济对技术多样化的提升效应越明显。异质性分析表明,要素禀赋差异、跨界污染转移和主体功能定位是影响省际交界地区数字经济碳减排效应的重要因素。数字产业化和产业数字化对碳减排的影响具有区域差异,在低数字产业化与高产业数字化的地区,数字经济的碳减排作用更加显著。本文不仅为系统理解数字经济的碳排放影响提供了新的分析视角,也为促进经济社会发展全面绿色转型、积极稳妥推进碳达峰碳中和提供了政策启示。
Achieving carbon peak and carbon neutrality is a systemic economic and social change that requires joint efforts of the whole society.As a new engine for high-quality economic and social development,the digital economy should play an important role in realizing the goal of“dual carbon.”The digital economy is an economic system based on digital technology,which can be divided into digital industrialization and industrial digitization.Zero-carbon transformation involves all economic sectors and regions.This article aims to measure digital economy's carbon reduction effect from perspectives of digital industrialization and industrial digitization,and provide useful references for achieving China's green and high-quality economic development and“dual carbon”goal.In this article,an endogenous growth model is constructed to derive the theoretical model of the digital economy affecting carbon emission reduction.This article uses the panel data of 1561 districts and counties from 2007 to 2017 and systematically analyzes the carbon emission reduction effect of the digital economy and its mechanism using a causal intermediary model.Research shows that the development of the digital economy has a significant carbon reduction effect.Mechanism analysis shows that the digital economy promotes technological diversification,which is positively adjusted by technological relevance.In addition,technological progress and energy efficiency also have important mediating effects.Heterogeneity analysis shows that differences in factor endowments,cross-border pollution transfer,and the positioning of main functions are important factors affecting the carbon reduction effects of the digital economy in inter-provincial border areas.The carbon reduction effect of the digital economy is more significant in regions with low digital industrialization and high industry digitalization,and the substitution effect is larger than the carbon friendly effect.This article has the following policy implications.We should promote the digital transformation of traditional industries,accelerate the promotion of green and low-carbon energy transformation,accelerate the development of basic digital technology capabilities and the construction of digital talent teams,and improve the digital economy governance system.This article constructs a theoretical analysis framework for the contribution of the digital economy to carbon reduction,enriching the connotation and application scenarios of the basic theory about digital economy,providing theoretical support for promoting green and high-quality development,and providing policy implications for accelerating the development of the digital economy and achieving the“dual carbon”goal.
作者
杨刚强
王海森
范恒山
岳子洋
YANG Gang-qiang;WANG Hai-sen;FAN Heng-shan;YUE Zi-yang(Economics and Management School,Wuhan University;Research Center of Yangtze River Economic Belt Development,Wuhan University;Institute of Central China Development,Wuhan University)
出处
《中国工业经济》
CSSCI
北大核心
2023年第5期80-98,共19页
China Industrial Economics
基金
国家社会科学基金重大项目“新时代促进区域协调发展的利益补偿机制研究”(批准号18ZDA040)。
关键词
数字经济
技术相关性
技术多样化
碳减排效应
digital economy
technical relevance
technological diversification
carbon reduction effect
