Varsanyi, Zoltan (2007): Rating philosophies: some clarifications.
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In this paper I try to give answers to some of the questions and problems that arise in relation to point in time (PIT) and through the cycle (TTC) rating philosophies. One of the most confusing of these is the definition of the two approaches that, as I argue, should be based on the scope of information behind the systems. Through a simple model I demonstrate that the results of quantitative analyses can be very sensitive to the definitions and, additionally, the stress concept applied. I analyze the role played by the rating philosophies in capital requirements calculations and stress tests, and touch on their implications on the pro-cyclicality of credit risk capital regulation.
|Item Type:||MPRA Paper|
|Institution:||Magyar Nemzeti Bank (the central bank of Hungary)|
|Original Title:||Rating philosophies: some clarifications|
|Keywords:||rating model; rating philosophy; stress test; pro-cyclicality|
|Subjects:||G - Financial Economics > G2 - Financial Institutions and Services > G28 - Government Policy and Regulation
C - Mathematical and Quantitative Methods > C1 - Econometric and Statistical Methods and Methodology: General
|Depositing User:||Zoltan Varsanyi|
|Date Deposited:||09. Feb 2007|
|Last Modified:||12. Feb 2013 13:01|
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Rating philosophies: some clarifications. (deposited 05. Feb 2007)
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