ABSTRACT This study examined the impacts of the ETS on tourism-related CO2 emissions and carbon intensity using a difference-in-differences model. The results show that the ETS is conducive to reducing tourism-related CO2 emissions and tourism carbon intensity. Furthermore, those negative impacts will increase over time. From an empirical perspective, this study could theoretically provide a useful research framework for analyzing the effects of the ETS on tourism development. From a methodological point of view, the research process presented in this study could encourage the difference-in-differences model to be widely adopted in evaluating the impacts of relevant policies on tourism.

中文翻译：

---

ETS可以减少与旅游相关的CO2排放和碳强度吗？准自然实验

摘要本研究使用差异模型研究了碳交易体系对旅游业相关二氧化碳排放和碳强度的影响。结果表明，碳排放权交易体系有利于减少旅游业相关的二氧化碳排放量和旅游业碳强度。此外，这些负面影响将随着时间而增加。从经验角度看，该研究理论上可以为分析碳交易体系对旅游业发展的影响提供一个有用的研究框架。从方法学的角度来看，本研究提出的研究过程可能会鼓励采用差异差异模型来评估相关政策对旅游业的影响。