Does political risk exacerbate climate risk? Firm-level evidence
基于美国企业2002-2021年的电话会议数据，研究发现政治风险高的企业更容易遭受气候风险，而污染行业、环境诉讼会加剧这一影响，但管理能力和非党派政治游说能缓解风险。
Using machine-learning-based measures for political and climate risks derived from corporate conference calls, we discover a link between the two in a large sample of US firms from 2002 to 2021. Our findings suggest that firms facing higher political risk are more susceptible to climate risk. Additionally, we find that a firm's emitter category industry classification and exposure to environmental litigation can exacerbate this situation, while managerial ability helps reduce the impact. Furthermore, political lobbying and donations effectively check corporate climate risk, but only under non-partisan conditions. Importantly, our findings are robust to concerns of reverse causality, sample selection bias, and measurement errors. • Political risk amplifies climate risk for U.S. firms. • High political risk makes firms in polluting industries even more vulnerable to climate risk. • Non-partisan lobbying and donations help firms lessen the impact of political risk on climate risk. • Efficient managers can weaken the link between political risk and climate risk.