Mortgage-backed securities (MBS) funded the U.S. housing bubble, while the ensuing bust resulted in systemic risk and the global financial crisis of 2007-09. In the run-up to the crisis, MBS pricing failed to reveal the growing credit risk. This article draws lessons from this failure that could...

This paper was presented at the conference "Policies to Promote Affordable Housing," cosponsored by the Federal Reserve Bank of New York and New York University's Furman Center for Real Estate and Urban Policy, February 7, 2002. It was part of Session 4: Housing Subsidies and Finance, and is a...