Detail publikace

Dynamic Model of Losses of a Creditor with a Large Mortgage Portfolio [submitted]

Autor: PhDr. Petr Gapko Ph.D., Voříšek, Jan
RNDr. Martin Šmíd Ph.D., Voříšek, Jan
Typ: Články v impaktovaných časopisech
Rok: 2013
Číslo: 0
ISSN / ISBN:
Publikováno v: The Journal of Credit Risk
Místo vydání:
Klíčová slova: credit risk, mortgage, loan portfolio, dynamic model, estimation
JEL kódy: G32
Citace:
Abstrakt: Abstract We propose a dynamic model of mortgage credit losses, which is a generalzation of the well-known Vasicek's model of loss distribution. We assume borrowers hold assets covering the instalments and own real estate which serves as collateral. Both the value of the assets and the price of the estate follow general stochastic processes driven by common and individual factors. We describe the correspondence between the common factors and the percentage of defaults, and the loss given default,respectively, and we suggest a procedure of econometric estimation in the model. On an empirical dataset we show that a more accurate estimation of common factors can lead to savings in capital needed to hold against a quantile loss.

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