His interests are political economy, public economics, election forecasting, European economics and institutions. His most recent books are Analyse Economique des Elections (Economica); (2010 co-authored with Veronique Jerome-Speziari) and Les élections municipales françaises. Paris: Presses de Sciences Po (Forthcoming, 2013 co-authored with Richard Nadeau, Véronique Jérôme-Spéziari and Martial Foucault).