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RESEARCH PRODUCT

The adjustment of bank ratings in the financial crisis: International evidence

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Abstract This paper analyses the adjustment of bank ratings which occurred in the United States, some European countries and Japan as a result of the financial crisis. We use a methodology which allows us to decompose the observed change in the rating into an effect associated with the change in agency rating policies (understood in a broad sense) and into another effect associated with the situation of bank assets. The results obtained show that with the crisis there was a generalised fall in the ratings, caused by both a worsening of the bank asset situation and the hardening of rating policies. Specifically, we find that 39.95% and 19.25% of the fall in ratings in the United States and European countries are due to a hardening of rating policies in Fitch and Standard and Poor’s, respectively. Although the relevance of the change in the rating policy is lower in Moody’s (15.83%), which suggests that has a less procyclical behaviour, this agency adjust their rating to a greater extent (15.94%) than Fitch (8.75%) and Standard and Poor’s (8.17%) when the rating action is taken.