Petrella, Ivan; Santoro, Emiliano - 2009
EPRU Working Paper Series 2009-04
Economic Policy Research Unit
Department of Economics
University of … of Cambridge, Faculty of Economics, Austin Robinson Building, Sidgwick Avenue, Cambridge CB3 9DD,
UK. E-mail: ip245@cam ….ac.uk.
zUniversity of Copenhagen, Department of Economics, Studiestr�de 6, DK-1455 Copenhagen, Denmark. E-mail:
emiliano …