He has formerly taught at the Université Paris 1-Panthéon Sorbonne and as a visiting lecturer at the University of Chicago. His research deals with labor, migration, gender and sexuality issues, mainly in France and the United States. He has published Les Agences de la Précarité. Journaliers à Chicago (Seuil 2010) and is a contributor to the collective study exploring the labor-market experience and union-supported mobilization of undocumented immigrant workers in France (On bosse ici, on reste ici. La grève des sans-papiers: une aventure inédite [La Découverte 2011, with Pierre Barron, Anne Bory, Nicolas Jounin and Lucie Tourette]). More recent research projects focus on social capital and the sociology of global elites in Europe and the Caribbean (with Bruno Cousin), and on the critical history of the commodity form (with Olga Sezneva).