数字化、碳减排成本与城市低碳高质量发展  

Digitalization,carbon reduction costs and high-quality urban development with low-carbon

作　　者：沈宏亮[1] 宋思萌 李杰 SHEN Hongliang;SONG Simeng;LI Jie(School of Economics,Capital University of Economics and Business,Beijing 100070,China)

机构地区：[1]首都经济贸易大学经济学院,北京100070

出　　处：《科技导报》2024年第6期86-102,共17页Science & Technology Review

摘　　要：利用2011—2020年上市公司和地级市匹配数据,探讨了数字化影响碳减排成本的机制、效果及其带来的城市低碳全要素生产率变化。结果表明,数字化通过碳减排成本对城市低碳全要素生产率的影响呈现“先抑制、后促进”特征。机制研究发现,数字化对碳减排成本的影响,因能源需求结构、要素技术效率、绿色技术创新的共同作用而具有非线性。数字化初期,能源需求激增、要素技术效率下降抵消了绿色技术创新的正效应,碳减排成本上升;数字化中后期,随着能源需求结构优化、要素技术效率提升,碳减排成本下降。异质性分析显示,相较于国有和高能耗企业,非国有企业、低耗能企业数字化转型较早降低了碳减排成本,提高了城市低碳全要素生产率;资源依赖度低、经济发达、规模较大、数字化与绿色技术创新耦合协调度较高的城市,数字化对碳减排成本的抑制作用更强,城市低碳全要素生产率也因此得到大幅提升。The emerging digital economy can achieve low-carbon development at a lower cost,and it is an important engine for integrating carbon neutrality and economic development goals.This paper uses the matching data of the listed companies and the prefecture-level cities from 2011 to 2020 to discuss the mechanism and the effect of digitalization on the cost of carbon emission reduction and the changes brought about by urban low-carbon total factor productivity.The results show that the impact of digitalization on urban low-carbon total factor productivity through carbon emission reduction costs shows the characteristics of"first suppression,then promotion".The mechanism study found that the impact of digitalization on carbon emission reduction costs was nonlinear due to the combined effects of energy demand structure,factor technology efficiency and green technology innovation:in the early stage of digitalization,the surge in energy demand and the decline in factor technology efficiency offset the positive effects of green technology innovation,and the carbon emission reduction cost increased.In the middle and late stages of digitalization,with the optimization of energy demand structure and the improvement of factor technology efficiency,the cost of carbon emission reduction decreases.The heterogeneity analysis shows that compared with state-owned and high-energyconsuming enterprises,the digital transformation of non-state-owned enterprises and low-energy-consuming enterprises reduces the cost of carbon emission reduction earlier and improves the low-carbon total factor productivity of cities.Cities with low resource dependence,developed economy,large scale,and high coupling and coordination between digitalization and green technology innovation have a stronger inhibitory effect on the cost of carbon emission reduction,and the low-carbon total factor productivity of cities has been greatly improved.

关 键 词：数字化 碳减排成本 城市低碳 

分 类 号：X321[环境科学与工程—环境工程] F124.5[经济管理—世界经济] F49F832.51