1. Department of Economics and Business, Aarhus University, Fuglesangs Allé 4, DK- 8210 Aarhus V, Denmark (email: )
2. Sao Paulo School of Economics—FGV, Rua Itapeva, 474-12° andar, Bela Vista, CEP 01332-000, Sao Paulo, Brazil (email: )
3. Department of Economics, Dalhousie University, 6406 University Ave, Halifax, Canada (email: )