Stock market

Unlike 2008, the current turmoil didn't originate in the U.S., economist Austan Goolsbee notes. And this time, the economy is growing, banks aren't in danger and there's no credit crunch, he says.

Curtis Carroll taught himself to read in prison. He also discovered a passion for finance. Now inmates and guards seek out his advice, and everyone calls him Wall Street.

The Nasdaq has closed at a new high. It last peaked just before the dot-com crash, and "Nasdaq 5,000" soon became code for stock market bubble. Does the record hold any of the same warnings today?

It's been more than four decades since Burton Malkiel published A Random Walk Down Wall Street. Eleven editions later, Malkiel hasn't wavered in his mantra of patience and broad investing.