Climate Regulation and Emissions Abatement: Theory and Evidence from Firms’ Disclosures
通过碳披露项目数据，研究企业气候监管信念、减排计划与当前减排行动，发现巴黎协定前后信念差异显著，且企业间声誉外部性和异质性信念放大了监管影响。
We measure firms’ beliefs about climate regulation, plans for future abatement, and current emissions mitigation from responses to the Carbon Disclosure Project. These measures vary strikingly around the Paris announcement. A dynamic model of a representative firm facing a future carbon levy, trading off abatement and capital growth, and facing convex adjustment costs cannot fit the data. A two-firm model with crossfirm reputational externalities, heterogeneous beliefs over climate regulation, and leader-follower interactions does. Out of sample, the model predicts firms’ reactions when the United States exits the Paris agreement. Firms’ beliefs about climate regulation strongly affect abatement, and crossfirm interactions amplify regulatory impacts. This paper was accepted by Victoria Ivashina, finance. Supplemental Material: The online appendix and data files are available at https://doi.org/10.1287/mnsc.2021.00482 .