Stefan Szymanski is professor of economics and strategy at the Tanaka Business School, Imperial College London, where he specializes in the business and economics of sports. His publications include two books on soccer: Winners and Losers: The Business Strategy of Football (Penguin, 2000) and Il Business del Calcio (Egea, 2004). Andrew Zimbalist is Robert A. Woods Professor of Economics at Smith College. He has published fifteen books and has consulted for players associations, governmental bodies, cities, owners, corporations, and international development organizations. His books include May the Best Team Win: Baseball Economics and Public Policy (Brookings, 2003) and In the Best Interests of Baseball? The Revolutionary Reign of Bud Selig (Wiley, 2006).