1. Florin Bilbiie is Professor of Economics, University of Lausanne, Lausanne, Switzerland. Research Fellows, Centre for Economic Policy Research, London, United Kingdom.
2. Tommaso Monacelli is Professor of Economics, Bocconi University, Milan, Italy. Research Fellows, Centre for Economic Policy Research, London, United Kingdom. Fellows, Innocenzo Gasparini Institute for Economic Research (IGIER), Milan, Italy.
3. Roberto Perotti is Professor of Economics, Bocconi University, Milan, Italy. Research Associate, National Bureau of Economic Research, Cambridge, Massachusetts. Research Fellows, Centre for Economic Policy Research, London, United Kingdom. Fellows, Innocenzo Gasparini Institute for Economic Research (IGIER), Milan, Italy.