CLSBE - Dissertações de Mestrado / Master Dissertations
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- Evaluating climate-risk language in 10-K filings : a ClimateBERT-driven study of firm valuationPublication . Weghorst, Anais; Fouquau, JulienThis thesis presents a transformer-based approach to quantify and price corporate climate-risk disclosures. By utilizing ClimateBERT, I classify Item 1A risk-factor text in S&P 500 10-K filings (200532024) to generate annual transition, physical, and general climate-risk scores for 8,001 firm-year observations. Fixed-effects regressions link these lagged scores to Tobin’s Q, revealing a significant negative valuation effect for transition-risk language, especially in high-exposure sectors (Utilities; Transportation & Warehousing), while physical-risk impacts primarily arise within the same industries. By combining advanced NLP with rigorous panel econometrics, this study provides detailed, sector-sensitive metrics that illuminate how investors value different aspects of corporate climate-risk disclosure.