An empirical analysis of the effects of the Dodd–Frank Act on determinants of credit ratings

Anwer S. Ahmed, Dechun Wang and Nina Xu

Journal of Business Finance & Accounting, 2024, vol. 51, issue 1-2, 363-397

Abstract: We study the effects of the Dodd–Frank Act (“Dodd–Frank”) on determinants of credit ratings. We predict that the increase in regulatory oversight and litigation risk prompted by Dodd–Frank, as well as requirements for improved disclosures and governance, motivated credit rating agencies (CRAs) to increase the reliance on verifiable quantitative fundamental information in determining ratings. We find that the power of firm fundamentals in explaining credit ratings increases significantly after Dodd–Frank. Furthermore, we find that the greater reliance on quantitative firm fundamentals at least partially drives the improvement in credit ratings’ ability to predict future defaults. Collectively, our evidence suggests that Dodd–Frank incentivizes CRAs to use more quantitative information in making rating decisions, which improves credit rating quality.

Date: 2024
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