1. Department of Information and Operations Management; Mays Business School; Texas A&M University; 4217 TAMU College Station Texas 77843-4217 USA
2. Smeal College of Business; The Pennsylvania State University; 444 Business Building University Park Pennsylvania 16802 USA
3. Smeal College of Business; The Pennsylvania State University; 413 Business Building University Park Pennsylvania 16802 USA
4. HEC Paris; 1, rue de la Libération 78351 Jouy-en-Josas Cedex France