We often hear that women are more risk averse than men. Commentator Helaine Olen says yes, male and female investors may approach risk-taking differently, but that's not why women have less money to put away.

Warren Buffett is one of the most successful investors in history, so what does he know about the economy that few others do? Buffet discusses the biggest investment mistake he's ever made, his economic concerns in the year ahead, and how to get the U.S. growing again.

Investors are agreeing to all sorts of crazy terms in order to put money to work in the bond and loan markets. They're baking risk into the system, and that could be a problem for all of us.

One retiree is seeking to sell her house and move. But she wonders whether it would be wiser to pay for a house with cash or carry a mortgage in retirement.