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| Moustapha Daouda Dala, Isabelle Distinguin and Alain Sauviat |
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| ''What is the information value of bank's stress tests? An investigation using banks' bond split ratings'' |
| ( 2020, Vol. 40 No.1 ) |
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| We study the informative value of stress tests by investigating the impact of the disclosure of their results on banks' bonds split ratings taken as a measure of bank opacity. We consider bonds jointly rated by Moody's and Standard & Poor's and issued by banks that participated to the European and US banks' stress tests. Our results suggest that the disclosure of stress results has mixed effect on split ratings. Our findings also suggest a frequent divergence of interpretation of the stress test results between the two rating agencies meaning that information would not be as relevant as hoped by regulators. Market players certainly could not extract an unambiguous signal from all the results disclosed by the stress tests. |
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| Keywords: stress tests, credit rating, split rating, banks' opacity |
JEL: G2 - Financial Institutions and Services: General
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| Manuscript Received : May 01 2019 | | Manuscript Accepted : Feb 10 2020 |
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