1. Department of Economics, University of California, San Diego, La Jolla, California 92093
2. School of Global Policy and Strategy, University of California, San Diego, La Jolla, California 92093
3. School of Marketing, University of South Australia, Adelaide, South Australia 5000, Australia
4. Rady School of Management, University of California, San Diego, La Jolla, California 92093
5. School of International and Public Affairs, Columbia University, New York, New York 10027