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Working Paper
Understanding house price index revisions
Residential house price indexes (HPI) are used for a large variety of macroeconomic and microeconomic research and policy purposes, as well as for automated valuation models. As is well known, these indexes are subject to substantial revisions in the months following the initial release, both because transaction data can be slow to come in, and as a consequence of the repeat sales methodology, which interpolates the effect of sales over the entire period since the house last changed hands. We study the properties of the revisions to the CoreLogic House Price Index. This index is used both by ...
Journal Article
Helping Struggling Homeowners During Two Crises
What the Great Recession Can Teach Us About Mortgage Troubles in the Wake of COVID-19
Journal Article
Collateral Damage: House Prices and Consumption During the Great Recession
Did a decline in house prices cause the Great Recession? And if so, how? Credit constraints may be the key to answering those questions
Journal Article
The promise and challenges of bank capital reform
The failure and bailout of some prominent financial institutions amid the crisis of 2007-09, and the effect these events had on the economy as a whole, have led policymakers to rethink how the global financial system is regulated. These changes, commonly known as the Basel III Accords, will require banks to maintain more capital in reserve, hold higher-quality capital, and assign greater risk weights to certain types of assets.
Working Paper
Securitization and mortgage default
This version is superseded by WP 15-15. The academic literature, the popular press, and policymakers have all debated securitization's contribution to the poor performance of mortgages originated in the run-up to the recent crisis. Theoretical arguments have been advanced on both sides, but the lack of suitable data has made it difficult to assess them empirically. The author examines this issue by using a loan-level data set from LPS Analytics, covering approximately two-thirds of the mortgages originated in 2005 and 2006, and including both securitized and nonsecuritized loans. ; The author ...
Discussion Paper
Cyclicality and the Severity of the U.S. Supervisory Stress Test: 2014 to 2018
In this study, we provide a measure of the severity of the 2014-2018 US supervisory stress tests, and examine how that severity measure has evolved.
Working Paper
Owner occupancy fraud and mortgage performance
We use a matched credit bureau and mortgage data set to identify occupancy fraud in residential mortgage originations, that is, borrowers who misrepresented their occupancy status as owner occupants rather than residential real estate investors. In contrast to previous studies, our data set allows us to show that such fraud was broad based, appearing in the government-sponsored enterprise market and in loans held on bank portfolios as well. Mortgage borrowers who misrepresented their occupancy status performed worse than otherwise similar owner occupants and declared investors, defaulting at ...
Working Paper
Owner-Occupancy Fraud and Mortgage Performance
We identify occupancy fraud — borrowers who misrepresent their occupancy status as owner-occupants rather than investors — in residential mortgage originations. Unlike previous work, we show that fraud was prevalent in originations not just during the housing bubble, but also persists through more recent times. We also demonstrate that fraud is broad-based and appears in government-sponsored enterprise and bank portfolio loans, not just in private securitization; these fraudulent borrowers make up one-third of the effective investor population. Occupancy fraud allows riskier borrowers to ...
Working Paper
Bankruptcy exemptions, credit history, and the mortgage market.
We develop and test a model of mortgage underwriting, with particular reference to the role of credit bureau scores. In our model scores are used in a standardized fashion, which reflects the prevalence of automated underwriting in industry practice. We show that our model has implications for the debate on the effect of personal bankruptcy exemptions on secured lending. Recent literature (Berkowitz and Hynes (1999), Lin and White (2001)) has developed conflicting theories?and found conflicting results?seeking to explain how exemptions affect the mortgage market. ; By contrast, our model ...
Working Paper
Concentration in Mortgage Markets: GSE Exposure and Risk-Taking in Uncertain Times
When home prices threaten to decline, lenders bearing more of a community’s mortgage risk have an incentive to combat this decline with new lending that boosts demand. We test whether this incentive drove the government-sponsored enterprises (GSEs) to guarantee riskier mortgages in early 2007, as the chance of substantial declines grew from small to significant. To identify the effect we relate new risky lending to regional variation in the GSEs’ exposure and the interaction of this variation with home-price elasticity. We focus on the GSEs’ discretion across potential purchases by ...