How to Make Money Playing Prediction Markets Posted on June 16, 2010 by admin How to Make Money Playing Prediction Markets Related PostsIn 1965, Congress said Medicare would cost $9 billion by 1990. In reality, it cost $67 billion -seven times more than the prediction.InTrade simulates event derivative trading on your iPhone.Wall Street 2: Money Never Sleeps. -> September 24, 2010
