1. Marketing, The Wharton School, University of Pennsylvania, Philadelphia, Pennsylvania 19104;
2. Finance, Eli Broad College of Business, Michigan State University, East Lansing, Michigan 48824;
3. Centre for Economic Policy Research, London EC1V 0DX, United Kingdom;
4. Department of Economics and Business, Universitat Pompeu Fabra (UPF), 08002 Barcelona, Spain;
5. Barcelona Institute for Political Economy and Governance (IPEG), 08005 Barcelona, Spain;
6. Barcelona School of Economics, 08005 Barcelona, Spain;
7. ICREA (Institució Catalana de Recerca i Estudis Avançats), 08010 Barcelona, Spain;
8. Department of Economics, University of California, Berkeley, Berkeley, California 94720