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Directional mobility of debt ratings

Author

Listed:
  • Sumon Kumar Bhaumik
  • John S. Landon-Lane

Abstract

In 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 crosssectional dimensions. We find that the directional decomposition also allows us to sign the change in quality of debt over time and across subgroups of the population.

Suggested Citation

  • Sumon Kumar Bhaumik & John S. Landon-Lane, 2013. "Directional mobility of debt ratings," Borsa Istanbul Review, Research and Business Development Department, Borsa Istanbul, vol. 13(4), pages 67-78, December.
    • Handle: RePEc:bor:bistre:v:13:y:2013:i:4:p:67-78
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    Cited by:

    1. Tamás Kristóf, 2021. "Sovereign Default Forecasting in the Era of the COVID-19 Crisis," JRFM, MDPI, vol. 14(10), pages 1-24, October.

    More about this item

    Keywords

    Ratings migration; Mobility; Sovereign debt;
    All these keywords.

    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

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