Robert Hahn is Co-Founder and Executive Director of the American Enterprise Institute-Brookings Joint Center and a resident scholar at AEI.  Previously, he worked for the Council of Economic Advisers.  He also has served on the faculties of Harvard University and Carnegie Mellon University.  Dr. Hahn frequently contributes to leading scholarly journals and general-interest periodicals, including The American Economic Review, The Yale Law Journal, Science, and The New York Times.  He is the author of Reviving Regulatory Reform: A Global Perspective (AEI-Brookings Joint Center, 2000) and In Defense of the Economic Analysis of Regulation (AEI-Brookings Joint Center, 2005).  In addition, Dr. Hahn is Co-Founder of the Community Preparatory School, an inner-city middle school in Providence, Rhode Island, that provides opportunities for disadvantaged youth to achieve their full potential.

Eric Posner is Kirkland and Ellis Professor of Law, University of Chicago.  His books include Law and Social Norms (Harvard, 2000); Chicago Lectures in Law and Economics (Foundation, 2000) (editor); Cost-Benefit Analysis: Legal, Economic, and Philosophical Perspectives (University of Chicago, 2001) (editor, with Matthew Adler); The Limits of International Law (Oxford, 2005) (with Jack Goldsmith); New Foundations of Cost-Benefit Analysis (Harvard, forthcoming 2006) (with Matthew Adler); and Terror in the Balance: Security, Liberty, and the Courts (Oxford, forthcoming 2007) (with Adrian Vermeule).  He is also an editor of the Journal of Legal Studies.  He has published articles on bankruptcy law, contract law, international law, cost-benefit analysis, constitutional law, and administrative law, and has taught courses on international law, foreign relations law, contracts, employment law, bankruptcy law, secured transactions, and game theory and the law.  His current research focuses on international law, immigration law, and foreign relations law.  He is a graduate of Yale College and Harvard Law School.