Senator of the Italian Republic and member of the Economic Budget Committee and the European Policies Committee in the Italian Senate.
He is professor of Economics at the University of Rome 'La Sapienza' and visiting professor at the College of Europe, Bruges (Belgium) and the USD, Business School, University of San Diego, California.
He has served as an advisor to several international organizations including the OECD, World Bank, CEPAL and the European Commission. 
He was Visiting Professor at the University of California, Berkeley, Université Libre de Bruxelles, (Belgium), College of Europe, Bruges, Natolin College (Warsaw, Poland), University of San Diego, California, Universidad Complutense (Madrid, Spain), UniBo Ba University (Buenos Aires, Argentina).
He has published more than 20 books, monographs or anthologies and more than 130 articles and book chapters in the area of international economics, European economic integration, economic regionalism.