FHFA: First-of-its-Kind Comprehensive Dataset on Mortgage Risk
Investor Update
May 20, 2021
Source: FHFA
Additional Resources:
FHFA
FHFA Publishes First-of-its-Kind Comprehensive Dataset on Mortgage Risk from 1990-2019
(Press Release)
Working Paper 19-02
(Original Report)
Author:
William Larson (FHFA), Morris Davis (Rutgers), Stephen Oliner (American Enterprise Institute), Benjamin R. Smith (University of Pennsylvania)
*Updated 5/20/2021
Abstract:
This paper provides a comprehensive account of the evolution of default risk for newly originated home mortgages over the past quarter century. We bring together several data sources to produce this history, including loan-level data for the entire Enterprise (Fannie Mae and Freddie Mac) book. We use these data to track a large number of loan characteristics and a summary measure of risk, the stressed default rate. Among the many results in the paper, we show that mortgage risk had already risen in the 1990s, planting seeds of the financial crisis well before the actual event. Our results also cast doubt on explanations of the crisis that focus on borrowers with low credit scores.
Note: These indices are works in progress and all data, tables, figures, and other results in this working paper are subject to change. Earlier versions of this paper were posted in January, March (under the title “Mortgage Risk Since 1990.”), and October 2019. The May 2021 version adds refinance mortgages to the prior analysis which focused exclusively on purchase-money mortgages. Other improvements to the imputation and validation methods are also included.
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