Before this is through, nearly everyone on the planet will have expressed an opinion on the sub-prime mortgage crisis. It’s a little late, but I thought I should get mine in. Here are some points about the issue that I don’t think have been given much discussion.
Mortgage-backed derivatives are not new. Some 20 years ago, FNMA introduced the REMIC (Real Estate Mortgage Investment Conduit). These were pools of mortgages that were split into various tranches or classes of maturity and quality, which were then sold separately, similar to the way today’s collateralized debt obligations (CDOs) are sold.
There were some important differences between this first generation and its descendants. I would like to point out some of the differences, since they may highlight the reasons behind the collapse.
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