Eric Posner is Kirkland and Ellis Distinguished Service Professor of Law. His current research interests are international law and constitutional law. His books include The Twilight of International Human Rights (Oxford, forthcoming 2014); Economic Foundations of International Law (with Alan Sykes) (Harvard, 2013); Contract Law and Theory (Aspen, 2011); The Executive Unbound: After the Madisonian Republic (with Adrian Vermeule) (Oxford, 2011); Climate Change Justice (with David Weisbach) (Princeton, 2010); The Perils of Global Legalism (Chicago, 2009); Terror in the Balance: Security, Liberty and the Courts (with Adrian Vermeule) (Oxford, 2007); New Foundations of Cost-Benefit Analysis (with Matthew Adler) (Harvard, 2006); The Limits of International Law (with Jack Goldsmith) (Oxford, 2005); Law and Social Norms (Harvard, 2000); Chicago Lectures in Law and Economics (editor) (Foundation, 2000); Cost-Benefit Analysis: Legal, Economic, and Philosophical Perspectives (editor, with Matthew Adler) (University of Chicago, 2001). He writes a column for Slate on legal issues. He is a fellow of the American Academy of Arts and Sciences and a member of the American Law Institute.