He obtained his Ph.D. at the European University Institute, and after a Marie Curie Fellowship at AQR, became an Assistant Professor at the Universitat de Barcelona. His work focuses on the econometric modelling of various aspects of fiscal policy, including the macroeconomic effects of government spending, fiscal consolidation, spillover of budget decisions, fiscal federalism and more generally the interaction between monetary and fiscal policies. He has worked on various projects on fiscal policy for the European Commission, the ECB, the OECD, the European Parliament, and the Spanish and Swedish government. He is coordinator of the Erasmus Mundus Master on Globalisation and European Integration, and Research Fellow at the United Nations University.