Nato il 7 Aprile 1961. Laureato in Economia politica presso l'Università Bocconi. PhD in Economics presso il MIT.
Professore straordinario di Economia politica. Research associate, National Bureau of Economic Research (NBER) e Research fellow, Center for Economic Policy Research (CEPR). Già Ricercatore a contratto presso l'IGIER, Università Bocconi. Ha insegnato in precedenza presso la Columbia University e presso lo European University Institute.
Macroeconomics. Political Economy.
"The European Union: A Politically Incorrect View", (con A. Alesina), Journal of Economic Perspectives, Spring, 2005; "Fiscal Policy and Monetary Integration in Europe", (con J. Gali), Economic Policy, October 2003; Meno pensioni, più welfare, (con T. Boeri), Il Mulino, Bologna, 2002; "An Empirical Investigation of the Dynamic Effects of Shocks to Government Spending and Taxes on Output", (con O. Blanchard), Quarterly Journal of Economics, 2002; "Fragmented Fiscal Policy", (con Y. Kontopoulos), Journal of Public Economics, 2002; "Fiscal Policy, Profits and Investment", (con A. Alesina, S. Ardagna, F. Schiantarelli), American Economic Review, September 2002; "Electoral Systems and Public Spending", (con G.M. Milesi-Ferretti and the assistance of M. Rostagno), Quarterly Journal of Economics, May 2002; "The Budget Process in Colombia: Analysis and Proposals", (con U. Ayala), in A. Alesina (ed.), Institutional Reform in Colombia, FEDESARROLLO, Bogotà, 2002; "Social Spending in Colombia: Analysis and Proposals", in A. Alesina (ed.), Institutional Reform in Colombia, FEDESARROLLO, Bogotà, 2002; "Is a Uniform Fiscal Policy Better? Fiscal Federalism and Factor Mobility", American Economic Review, June 2001; "Fiscal Policy in Good Times and Bad", Quarterly Journal of Economics, November 1999; "Economic Risk and Political Risk in Fiscal Unions", (con A. Alesina), Economic Journal, July 1998.