The recent financial crisis was triggered by large and unexpected losses on mortgages and mortgage-related securities. Here we examine model risk arising from innovations in mortgage markets and how those innovations affect asset values. In particular, we examine the effect of parameter...

From a broad macro-financial structure perspective, overly easy credit conditions gave rise to house price booms and busts in several advanced economies (e.g., Ireland, Spain, and the U.S.), and, more specifically in the U.S., an underpricing of risk made possible by regulatory arbitrage and...

This paper argues that during the housing bubble, housing finance markets failed to price risk correctly because of information failure caused by the complexity and heterogeneity of private-label mortgage-backed securities and structured finance products. Addressing the informational problems...

This article describes the causes of the boom and bust in the U.S. housing market, which brought down not just the U.S. financial system but the global economy. How did this vicious cycle begin? How did home prices appreciate so far and so fast? Why did rational investors not recognize and stop...