The Economics of Solicited and Unsolicited Credit Ratings
The Harvard Law School Forum on Corporate Governance and Financial Regulation 2014-01-06
In our paper, The Economics of Solicited and Unsolicited Credit Ratings, forthcoming in the Review of Financial Studies, we develop a dynamic rational expectations model to address the question of why rating agencies issue unsolicited credit ratings and why these ratings are, on average, lower than solicited ratings. We analyze the implications of this practice for credit rating standards, rating fees, and social welfare. Our model incorporates three critical elements of the credit rating industry: (i) the rating agencies’ ability to misreport the issuer’s credit quality, (ii) their ability to issue unsolicited ratings, and (iii) their reputational concerns.