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 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.