Online Article 81.1 Libertarian Paternalism, Path Dependence and Temporary Law Tom Ginsburg Leo Spitz Professor of International Law and Ludwig and Hilde Wolfe Research Scholar Jonathan S. Masur Deputy Dean and Professor of Law, The University of Chicago Law School Richard H. McAdams Bernard D. Meltzer Professor of Law and Aaron Director Research Scholar, The University of Chicago Law School Behavioral Economics Law and Economics Regulation