Jon Elster is Robert K. Merton Professor of Social Science at Columbia University, New York and Professeur Honoraire at the Collège de France. He is the author or editor of thirty-four books, most recently Agir contre soi: la faiblesse de volonté (2007), Le désintéressement: traité critique de l'homme économique (2009), Alexis de Tocqueville: The First Social Scientist (Cambridge, 2009), L'irrationalité (2010) and Securities against Misrule: Juries, Assemblies, Elections (Cambridge, 2013).