Roberto Serrano is Harrison S. Kravis University Professor at Brown University, Rhode Island, and Research Associate at the Madrid Institute for Advanced Studies, Spain. He has contributed to different areas in microeconomic theory and game theory and his research has been published in leading journals including Econometrica, the Journal of Political Economy, the Review of Economic Studies, the Journal of Economic Theory, Games and Economic Behavior and the SIAM Review. He has received prestigious fellowships and prizes, including the Alfred P. Sloan Foundation Fellowship in 1988 and the Funda...