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Insecure Securities

MUNICH – Once upon a time, stocks were risky and collateralized securities were safe. That time is over, as the breakdown of the American mortgage securitization market has shown.

For years, hundreds of billions of new mortgage-backed securities (MBSs) and collateralized debt obligations (CDOs) generated from them were sold to the world to compensate for the lack of savings in the United States and to finance American housing investment. Now virtually the entire market for new issues of such securities – all but 3% of the original market volume – has vanished.