[1] Amer Enterprise Inst Publ Policy Res, Reg Markets Ctr, Washington, DC 20036 USA
[2] Stanford Univ, Dept Econ, Stanford, CA 94305 USA
[3] Univ S Florida, Coll Business, Tampa, FL 33620 USA
[4] IIT, Stuart Sch Business, Chicago, IL 60661 USA
[5] George Mason Univ, Dept Econ, Fairfax, VA 22030 USA
[6] CALTECH, Dept Econ, Pasadena, CA 91125 USA
[7] Univ Chicago, Sch Law, Chicago, IL 60637 USA
[8] Kauffman Fdn, Kansas City, MO 64110 USA
[9] Univ Iowa, Dept Econ, Iowa City, IA 52242 USA
[10] Northwestern Univ, JL Kellogg Grad Sch Management, Evanston, IL 60208 USA
[11] Univ Maryland, Sch Publ Policy, College Pk, MD 20742 USA
[12] Yale Univ, Dept Econ, New Haven, CT 06520 USA
[13] Chapman Univ, Sch Law, Orange, CA 92866 USA
[14] Stanford Univ, Grad Sch Business, Stanford, CA 94305 USA
[15] Yale Univ, Sch Management, New Haven, CT 06520 USA
[16] Univ Calif Berkeley, Haas Sch Business, Berkeley, CA 94720 USA
[17] Univ Calif Berkeley, Sch Informat, Berkeley, CA 94720 USA
[18] Univ Penn, Wharton Sch, Philadelphia, PA 19104 USA
[19] Dartmouth Coll, Dept Econ, Hanover, NH 03755 USA