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...

Securitization has been widely assigned blame for contributing to the recent mortgage market meltdown and ensuing financial crisis. In this paper, we employ the OCC Home Equity database to develop estimates of default and prepayment probabilities for home equity lines of credit originated during...

We identify two data-related errors in the work of Ouazad and Kahn (OK, RFS 2021). Correcting either of these errors or both entirely reverses the original result, in OK’s code and in our independent implementation. The two corrections we implement are to use the correct FHFA conventional loan...

Extensive research has confirmed that there is significant anchoring bias in purchase mortgage appraisals, with appraisers setting the value at or above the contract price the vast majority of the time. However, understanding appraisal bias in refinance mortgages has been significantly more...