Knowledge@Wharton: This book ties back to Moneyball. Tell us how it came about.
Michael Lewis: Moneyball led to this book in an odd way. Moneyball is, in my mind, mainly about the way markets misvalue people. It happens to be baseball players, but it’s a story about this team, the Oakland A’s, that has fewer resources than the competition. They have to find different ways, better ways to find baseball players. They discover in the process that the market for baseball players is not efficient. There are good baseball players who aren’t appreciated, and there are not so good baseball players who are over-valued.
