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A Note on the Vasicek’s Model with the Logistic Distribution

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Abstract

The paper argues that it would be natural to replace the standard normal distribution function by the logistic function in the regulatory Basel II (Vasicek’s) formula. Such a model would be in fact consistent with the standard logistic regression PD modeling approach. An empirical study based on US commercial bank’s loan historical delinquency rates re-estimates the default correlations and unexpected losses for the normal and logistic distribution models. The results indicate that the capital requirements could be up to 100% higher if the normal Vasicek’s model was replaced by the logistic one.

Suggested Citation

  • Jiri Witzany, 2013. "A Note on the Vasicek’s Model with the Logistic Distribution," Working Papers IES 2013/01, Charles University Prague, Faculty of Social Sciences, Institute of Economic Studies, revised Jan 2013.
    • Handle: RePEc:fau:wpaper:wp2013_01
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    File URL: http://ies.fsv.cuni.cz/sci/publication/show/id/4786/lang/cs
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    Citations

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    Cited by:

    1. Metzler A., 2020. "State dependent correlations in the Vasicek default model," Dependence Modeling, De Gruyter, vol. 8(1), pages 298-329, January.
    2. Metzler A., 2020. "State dependent correlations in the Vasicek default model," Dependence Modeling, De Gruyter, vol. 8(1), pages 298-329, January.
    3. Hana Džmuráňová & Petr Teplý, . "Why Are Savings Accounts Perceived as Risky Bank Products?," Prague Economic Papers, University of Economics, Prague, vol. 0, pages 1-17.
    4. Hana Džmuráňová & Petr Teplý, 2016. "Why Are Savings Accounts Perceived as Risky Bank Products?," Prague Economic Papers, Prague University of Economics and Business, vol. 2016(5), pages 617-633.

    More about this item

    Keywords

    credit risk; Basel II regulation; default rates;
    All these keywords.

    JEL classification:

    • G20 - Financial Economics - - Financial Institutions and Services - - - General
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation

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