This paper reviews the mortgage-backed securities (MBS) market, with a particular emphasis on agency residential MBS in … economic effects of mortgage securitization. We also assemble descriptive statistics about market size, growth, security … the MBS market and mortgage securitization. …

We study credit ratings on subprime and Alt-A mortgage-backed-securities (MBS) deals issued between 2001 and 2007, the … period leading up to the subprime crisis. The fraction of highly rated securities in each deal is decreasing in mortgage … underperformance (high mortgage defaults and losses and large rating downgrades) among deals with observably higher risk mortgages …

This paper reviews the mortgage-backed securities (MBS) market, with a particular emphasis on agency residential MBS in … economic effects of mortgage securitization. We also assemble descriptive statistics about market size, growth, security … the MBS market and mortgage securitization …