【摘要】 基于2003—2019年285个城市的面板数据，利用多期双重差分模型和三重差分模型实证检验了碳交易试点政策对城市工业绿色全要素生产率的影响及作用机制。结果显示：碳交易试点政策通过提升能源利用率和促进绿色技术创新等机制提升城市工业绿色全要素生产率。异质性分析结果表明，碳交易试点政策更能显著提升南方地区、金融发展高水平地区规模大的城市的城市工业绿色全要素生产率；与非一线城市相比，一线城市碳交易试点政策对城市工业绿色全要素生产率的促进作用更大。进一步分析发现，将城市工业绿色全要素生产率进一步分解为城市工业技术进步、城市工业纯技术效率和城市工业规模效率，发现碳交易试点政策能显著促进城市工业技术进步和提升城市工业纯技术效率，却未能显著提升城市工业规模效率。更多还原

【Abstract】 Based on the panel data of 285 cities from 2003 to 2019, this paper empirically tests the influence and mechanism of carbon trading pilot policy on urban industrial green total factor productivity by using multi-period double difference model and triple difference model. The results show that carbon trading pilot policy can improve urban industrial green total factor productivity through mechanisms such as improving energy utilization rate and promoting green technology innovation. Heterogeneity analysis shows that carbon trading pilot policy can significantly improve the green total factor productivity of urban industry in large cities in southern China and areas with high financial development level; compared with non-first-tier cities, the pilot policy of carbon trading in first-tier cities has a greater role in promoting the green total factor productivity of urban industries; further analysis shows that the green total factor productivity of urban industry is further decomposed into urban industrial technological progress, urban industrial pure technical efficiency and urban industrial scale efficiency. It is found that the pilot policy of carbon trading can significantly promote urban industrial technological progress and enhance urban industrial pure technical efficiency, but it can not significantly improve urban industrial scale efficiency.更多还原