Bank ratings: what determines their quality?

Bank risk during the financial crisis: do business models matter?

Harald Hau, Sam Langfield and David Marques-Ibanez

Economic Policy, 2013, vol. 28, issue 74, 289-333

Abstract: This paper examines the quality of credit ratings assigned to banks by the three largest rating agencies. We interpret credit ratings as relative assessments of creditworthiness, and define a new ordinal metric of rating error based on banks' expected default frequencies. Our results suggest that on average large banks receive more positive bank ratings, particularly from the agency to which the bank provides substantial securitization business. These competitive distortions are economically significant and contribute to perpetuate the existence of ‘too-big-to-fail’ banks. We also show that, overall, differential risk weights recommended by the Basel accords for investment grade banks bear no significant relationship to empirical default probabilities.— Harald Hau, Sam Langfield and David Marques-Ibanez

Date: 2013
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Related works:
Working Paper: Bank ratings-What determines their quality? (2012)
Working Paper: Bank Ratings: What Determines Their Quality? (2012)
Working Paper: Bank ratings: What determines their quality? (2012)
Working Paper: Bank ratings: what determines their quality? (2012)
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Persistent link: https://EconPapers.repec.org/RePEc:oup:ecpoli:v:28:y:2013:i:74:p:289-333.

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