Philip Gerson (International Monetary Fund), Abdelhak Senhadji (International Monetary Fund), Carlo Cottarelli (Commissioner of Public Spending Reform in Italy ), Vítor Gaspar (Former Minister of Finance of Portugal), Maya MacGuineas (Committee for a Responsible Federal Budget) and Adam S. Posen (PIIE)
Anders Åslund (PIIE), Jean Pisani-Ferry (Bruegel), Nouriel Roubini (Roubini Global Economics), Marco Buti (European Commission) and Mario Draghi (Bank of Italy, Financial Stability Board, and European Central Bank)