1. CREI, Ramon Trias Fargas, 25-27, Merce Rodoreda Bldg., Barcelona, 08005, Spain (email: )
2. Austin McCombs School of Business, University of Texas, 2110 Speedway, Austin, TX 78705, and Universidad Carlos III Madrid, Calle Madrid, 126, 28903 Getafe, Spain (email: )
3. Haas School of Business, University of California, 2220 Piedmont Avenue, Berkeley, CA 94720 (email: )