Xavier Debrun is an economist in the Fiscal Affairs Department of the IMF. After receiving his PhD from the Graduate Institute of International Studies in Geneva, he was a Post-doctoral Fellow at the Department of Economics of Harvard University. Debrun joined the IMF in 2000 where he contributed to the World Economic Outlook. His research interests include international policy coordination, monetary unions, fiscal policy and fiscal rules, and stochastic analysis of debt sustainability. His work has been published in journals such as the Economic Journal and the European Economic Review.