摘要
数字经济发展逐渐成为实现双碳目标的重要途径。基于2011—2020年省级面板数据,建立指标评价体系对数字经济发展水平和碳生产率进行测度,运用中介效用模型、空间面板模型、门槛模型揭示数字经济发展对碳生产率的影响。研究发现:(1)数字经济发展对碳生产率有显著促进作用且存在区域异质性;(2)研发强度和环境规制在数字经济对碳生产率的传导机制中具有明显的中介作用;(3)数字经济促进碳生产率提高的同时也存在空间溢出效应;(4)数字经济对碳生产率的正向促进作用因消费结构水平的不同而存在门槛效应,两者间的关系会随着消费结构水平高低变动而发生变化。研究结论可为精准评估数字经济的减排效应、加速释放数字经济时代的碳生产潜力、统筹制定差异化的数字赋能绿色低碳转型战略提供经验证据和政策启示。
The development of the digital economy has emerged as a critical avenue for achieving dual carbon objectives.This study utilizes panel data spanning from 2011 to 2020 across 30 provincial-level administrative regions in China(excluding Hong Kong,Macao,and Tibet).It constructs an index system from four dimensions:digital infrastructure,digital industrialization,the penetration level of the digital economy,and industrial digitization.The entropy method is employed to derive the comprehensive index of the digital economy for each province.Additionally,carbon emissions from eight types of fossil energy fuels are computed for each province and measured relative to regional gross domestic product(GDP)to assess carbon productivity.To comprehensively investigate the influence of the digital economy on carbon productivity,this study employs a multifaceted approach,including bidirectional fixed effects models,spatial Durbin effects models,and panel threshold effects models.The results reveal the following insights.First,Overall regression results demonstrate a significant positive effect of the digital economy on carbon productivity.Heterogeneity analyses from both regional and digital economy development perspectives indicate that the promotion effect of the digital economy on carbon productivity is more pronounced in the central and western regions compared to the eastern region.Moreover,the study finds that no significant inhibitory or promotional effect of the digital economy on carbon productivity in less developed regions is relative to that of the developed digital economy regions.Secondly,mechanism tests indicate that the digital economy promotes carbon productivity through research and development intensity and environmental regulation capabilities.Specifically,the digital economy facilitates the transition of natural resource-intensive industries towards low-carbon,high-tech industries,ultimately enhancing carbon productivity.Regarding environmental regulation,the digital economy can influenceenterprise investmen
作者
白雪
阚梦仲
BAI Xue;KAN Mengzhong(School of Economics,Anhui University,Hefei 230601,China)
出处
《重庆理工大学学报（社会科学）》
CAS
2024年第3期67-81,共15页
Journal of Chongqing University of Technology（Social Science）
基金
安徽省哲学社会科学规划项目“安徽省金融服务实体经济质效提升的机制与路径研究”(AHSKY2022D070)
安徽省高校人文社会科学重点研究项目“我国金融市场的非对称联动效应研究——基于尾部风险溢出的视角”(SK2021A0028)。
关键词
数字经济
碳生产率
研发强度
环境规制
消费结构
digital economy
carbon productivity
research and development intensity
environmental regulations
consumption structure
