In 2021, the U.S. Treasury reduced Government Sponsored Enterprises (GSEs) exposure to speculative mortgages. As a result, GSE purchases fell by about 20 percentage points. The policy reduced credit to speculative investors in housing, but increased credit to unaffected parts of the...

Initial yields on both AAA-rated and non-AAA rated mortgage-backed security (MBS) tranches sold by large issuers are higher than yields on similar tranches sold by small issuers during the market boom years of 2004-2006. Moreover, the prices of MBS sold by large issuers drop more than those sold...

We examine whether rating agencies (Moody's, S&P, and Fitch) reward large issuers of mortgage-backed securities, who bring substantial business, by granting them unduly favorable ratings. The initial yield on both AAA-rated and non-AAA rated tranches sold by large issuers is higher than that on...

This paper shows that securitization reduces the influence of bank financial condition on loan supply. Low-cost funding and increased balance-sheet liquidity raise bank willingness to approve mortgages that are hard to sell (jumbo mortgages), while having no effect on their willingness to...