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Journal of Finance Vol. 68 No. 3 2013

Equilibrium Subprime Lending

Igor Makarov1; Guillaume Plantin2,3

1 Massachusetts Institute of Technology · 2 Université Toulouse-I-Capitole · 3 Shanghai Harbour Engineering Design & Research Institute

Abstract

This paper develops an equilibrium model of a subprime mortgage market. Our goal is to offer a benchmark with which the recent subprime boom and bust can be compared. The model is tractable and delivers plausible orders of magnitude for borrowing capacities, as well as default and trading intensities. We offer simple explanations for several phenomena in the subprime market, such as the prevalence of teaser rates and the clustering of defaults. In our model, both nondiversifiable and diversifiable income risks reduce debt capacities. Thus, debt capacities need not be higher when a larger fraction of income risk is diversifiable.

DOI
10.1111/jofi.12022
Volume
68
Issue
3
Pages
849-879
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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