Derivatives play a major role in the meltdown:
Credit derivatives—those securities that few have ever seen—are one reason why this crisis is so different from 1929.
Derivatives weren't initially evil. They began as insurance policies on large loans. A bank that wished to lend money to a big, but shaky, venture, like what Ford or GM have become, could hedge its bet by buying a credit derivative to cover losses if the debtor defaulted. Derivatives weren't cheap, but in the era of globalization and declining American competitiveness, they were prudent. Interestingly, the company that put the basic hardware and software together for pricing and clearing derivatives was Bloomberg. It was quite expensive for a financial institution—say, a bank—to get a Bloomberg machine and receive the specialized training required to certify analysts who would figure out the terms of the insurance. These Bloomberg terminals, originally called Market Masters, were first installed at Merrill Lynch in the late 1980s.