用能权交易制度的减污降碳协同效应分析

Analysis of the Synergistic Effects of Energy Consumption Permit Trading Scheme on Pollution Reduction and Carbon Abatement

“双碳”战略目标下,用能权交易制度作为中国能源领域市场化改革的一项创新制度,能否推动减污降碳协同增效仍有待研究.基于2008~2019年中国省际面板数据,通过双重差分法探究了用能权交易制度对减污降碳协同增效的影响.结果表明,用能权交易制度提升了试点地区减污降碳水平.具体地,用能权交易制度使试点地区的CO_(2)排放量和PM_(2.5)浓度分别下降13.3%和3.1%,使整体减污降碳水平提高0.237个单位.机制分析发现,能源效率是用能权交易制度赋能减污降碳协同增效的路径.进一步分析发现,地方政府的环境保护目标强化了用能权交易制度的减污降碳协同效应.令人意外的是,经济增长目标并没有削弱用能权交易制度的有效性.文章为理解市场型环境规制与协同治理之间的关系提供了新的经验证据,并为中国实现“双碳”战略目标提供了有力支持.

Under the“dual-carbon”strategic goals,it is urgent to examine whether the energy consumption permit trading scheme(ECPTS),as an innovative system in China's market-oriented reform of the energy sector,can promote the synergistic enhancement of pollution reduction and carbon abatement.Based on provincial panel data of China from 2008 to 2019,this study adopted a difference-in-differences model to examine the impacts of the ECPTS on the synergistic enhancement of pollution reduction and carbon abatement.The results demonstrated that the ECPTS improved the level of pollution reduction and carbon abatement in pilot areas.Specifically,the ECPTS led to a reduction of 13.3%in CO_(2)emissions and 3.1%in PM_(2.5)concentration in the pilot areas and resulted in an overall improvement of pollution reduction and carbon abatement by 0.237 units.Mechanism analysis revealed that energy efficiency served as a pathway through which the ECPTS empowered the synergistic enhancement of pollution reduction and carbon abatement.Moreover,the strengthening of local government environmental protection goals enhanced the pollution reduction and carbon abatement effects of the ECPTS.Surprisingly,the effectiveness of the ECPTS was not undermined by the goal of economic growth.This study provides new empirical evidence for understanding the relationship between market-based environmental regulation and collaborative governance and provides strong support for China to achieve its“dual-carbon”strategic goals.