Ian Shapiro is Sterling Professor of Political Science at Yale University, where he also serves as Henry R. Luce Director of the Yale Center for International and Area Studies. He is the editor or author of numerous books, most recently Political Contingency (NYU Press) and Rethinking Political Institutions (NYU Press).Peter Swenson is Saden Professor of Political Science at Yale University.Daniela Donno is Assistant Professor of Political Science at the University of Pittsburgh.