1. Department of Economics, Stanford University, Stanford, CA 94305, USA
2. College of Business, University of South Florida, Tampa, FL 33620, USA
3. Stuart School of Business, Illnois Institute of Technology, Chicago, IL 60661, USA
4. Reg-Markets Center at American Enterprise Institute, Washington, DC 20036, USA
5. Department of Economics, George Mason University, Fairfax, VA 22030, USA
6. Department of Economics, California Institute of Technology, Pasadena, CA 91125, USA
7. University of Chicago Law School, Chicago, IL 60637, USA
8. Kauffman Foundation, Kansas City, MO 64110, USA
9. Department of Economics, University of Iowa, Iowa City, IA 52242, USA
10. Kellogg Graduate School of Management, Northwestern University, Evanston, IL 60208, USA
11. School of Public Policy, University of Maryland, College Park, MD 20742, USA
12. Department of Economics, Yale University, New Haven, CT 06520, USA
13. Chapman University School of Law, Orange, CA 92866, USA
14. Graduate School of Business, Stanford University, Stanford, CA 94305, USA
15. Yale School of Management, New Haven, CT 06520, USA
16. Haas School of Business, University of California, Berkeley, CA 94720, USA
17. School of Information, University of California, Berkeley, CA 94720, USA
18. The Wharton School, University of Pennsylvania, Philadelphia, PA 19104, USA
19. Department of Economics, Dartmouth College, Hanover, NH 03755, USA