From a Canadian paper:
Whenever markets really tank, I phone my friend Laura. "Help," I said yesterday. "What's happening?"
"The lipstick has come off the pig," she said.
"This is scary," I said. "How could so many smart people be so wrong?"
"Because they were getting rich. They were manufacturing product out of thin air and collecting fees every which way. And greed just overtook them."
"The models said there would be some defaults, but not too many," Laura explained. The models were wrong. Today, around 30 per cent of the people who bought houses between 2001 and 2007 have what's known as "negative equity," and they're walking away.
Meantime, investment bankers like Lehman Brothers got rich by taking more and more risks. "Let's say you have $100 and you can make $10 on that. But what if you have $5 and borrow the other $95? Your returns are way higher. That's essentially what the game was."
http://www.theglobeandmail.com/servlet/story/LAC.20080916.COWENT16/TPStory/National