Mortgages denominated in domestic and foreign currencies : simple models

Király, J. and Simonovits, András (2015) Mortgages denominated in domestic and foreign currencies : simple models. Műhelytanulmányok = Discussion Papers (MT-DP ). Institute of Economics, Centre for Economic and Regional Studies, Hungarian Academy of Sciences, Budapest. ISBN 978-615-5447-72-3

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Abstract

fter the short temporary popularity of FX denominated loans, during the Gr eat Financial and Economic Recession (2007 – 2013), the burden of these loans has become unaffordable for a lot of borrowers. We have designed a family of simple models to compare the cash flows of installments and the paths of outstanding debts denominated in domestic and foreign currencies, respectively. Having these models, we are able to draw several conclusions relevant to the recent debates about the foreign currency denominated loans. Our study demonstrates the key role played by the uncovered interest rate parity in comparisons. Moreover, we give a closed - form solution for the trade - off between the depreciation and the unilateral interest rate increases by the banks. In a simple model, we determine the optimal size for domestic and foreign currency den ominated loans, respectivel.

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