1. Universidad de la Republica, Uruguay, and IZA (email: )
2. Universidad de la Republica, Uruguay (email: )
3. CEDLAS-FCE-Universidad Nacional de La Plata, CONICET, and University of Nottingham (email: )
4. University of California, Los Angeles, and Universidad de la Republica, Uruguay (email: )
5. University of California, Berkeley (email: )