Directional Mobility of Ratings
AbstractIn this paper we describe a method to decompose a well-known measure of debt ratings mobility into it’s directional components. We show, using sovereign debt ratings as an example, that this directional decomposition allows us to better understand the underlying characteristics of debt ratings migration and, for the case of the data set used, that the standard Markov chain model is not homogeneous in either the time or cross-sectional dimensions. We find that the directional decomposition also allows us to sign the change in quality of debt over time and across sub-groups of the population.
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Bibliographic InfoPaper provided by William Davidson Institute at the University of Michigan in its series William Davidson Institute Working Papers Series with number wp900.
Date of creation: 01 Nov 2007
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Ratings migration; Mobility; Sovereign debt;
Find related papers by JEL classification:
- F34 - International Economics - - International Finance - - - International Lending and Debt Problems
- G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
- H63 - Public Economics - - National Budget, Deficit, and Debt - - - Debt; Debt Management; Sovereign Debt
This paper has been announced in the following NEP Reports:
- NEP-ALL-2008-06-07 (All new papers)
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