Liu says he was one of scores of prisoners forced to play online games to build up credits that prison guards would then trade for real money.

FORBES: Connect

Then it comes time for real money and you have to make that trade.

FORBES: The Trick Or Treat Of Trading Options

In order to trade on Intrade you had to deposit real live money with them.

FORBES: Intrade Closes Its Doors: But Why? Is This Another MF Global?

Negative real interest rates and strong money supply growth are two key factors of what I refer to as the Fear Trade.

FORBES: Central Bank Appetite And The Monetary Case For $10,000 Gold