'Ratings Arbitrage' Led to Lower Credit Subprime
The deal dynamics in the 'securitization process' expanded the overall level of subprime lending and boosted the degree of risk in subprime residential mortgage-backed securities (RMBS) deals, according to a Fed working paper analysis of 1,267 securitization deals between 1997 to 2007. A new SEC rule in 2004 that, on paper, increased capital in five large broker-dealer banks -- Bear Stearns, Goldman Sachs, Lehman Brothers, Merrill Lynch and Morgan Stanley -- led to greater demand for lower credit quality subprime mortgage purchases. The evidence in deals from these investment banks in 2005 suggest they engaged in ‘ratings arbitrage’ to bring to the secondary market the lowest cost subprime loans that could earn an AAA investment rating, according to the Fed authors. By Robert Stowe England MindOverMarket.blogspot.com July 30, 2009 The securitization process – how loans are put together and assigned credit ratings – drove up the flow of credit in subprime residential mortgage-ba...