What 'Triggers' Mortgage Default?
15 Pages Posted: 29 Apr 2010 Last revised: 15 May 2010
Date Written: April 1, 2010
Abstract
This paper assesses the relative importance of two key drivers of mortgage default: negative equity and illiquidity. To do so, the authors combine loan-level mortgage data with detailed credit bureau information about the borrower's broader balance sheet. This gives them a direct way to measure illiquid borrowers: those with high credit card utilization rates. The authors find that both negative equity and illiquidity are significantly associated with mortgage default, with comparably sized marginal effects. Moreover, these two factors interact with each other: The effect of illiquidity on default generally increases with high combined loan-to-value ratios (CLTV), though it is significant even for low CLTV. County-level unemployment shocks are also associated with higher default risk (though less so than high utilization) and strongly interact with CLTV. In addition, having a second mortgage implies significantly higher default risk, particularly for borrowers who have a first-mortgage LTV approaching 100 percent.
Keywords: Mortgages, Mortgage Default, Negative Equity, Illiquidity, Double Trigger, Consumer Credit, Household Finance
JEL Classification: D12, D14, E51, G21, G33, L85, R31
Suggested Citation: Suggested Citation
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