Abstract
We compare several models for estimating the default probabilities of Russian banks using national statistics from 1998 to 2011, and find that a binary logit regression with a quasi-panel data structure works best. The results indicate that there is a quadratic U-shaped relationship between a bank’s capital adequacy ratio and its probability of default. In addition, macroeconomic, institutional, and time factors significantly improve model accuracy. These results are useful for national financial regulatory authorities, as well as for risk-managers in commercial banks.
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Notes
A detailed overview of PD model types is beyond the scope of the literature review. Please see Totmyanina (2011) for a more detailed explanation.
Interfax database: http://www.spark-interfax.ru, “BankScope” database: https://bankscope2.bvdep.com, "Banks and Finance" database has no official description in the Internet.
For additional details on this topic, please see Greene (2007).
There were no corrections for observations of the "default" class. In this case, extraordinary values could be caused by a weak financial position of a bank.
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Acknowledgements
The work is partially supported by the International Laboratory of Quantitative Finance, NRU HSE, RF government Grant, ag. 14.A12.31.0007; a Research project No. 05-0030 ≪Analysis of credit institutions insolvency≫, NRU HSE, RF.
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Karminsky, A.M., Kostrov, A. The probability of default in Russian banking. Eurasian Econ Rev 4, 81–98 (2014). https://doi.org/10.1007/s40822-014-0005-2
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DOI: https://doi.org/10.1007/s40822-014-0005-2