The Credit Bubble Pops

In an effort to understand the economy's decline in the last ~8 months, I'm posting links to articles are stories that help clarify matters. Here's one key I've heard about - a risk-assement equation used by many investors on Wall Street. They used this and nothing else, apparently, even when the academic who developed it said, in effect, "It's in beta!"

http://news.slashdot.org/article.pl?sid=09/03/03/036223