1. R. B. Pamplin College of Business, 2106 Pamplin Hall, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0233; 540-231-5021; fax: 540-231-3076
2. Department of Management of Organizations, School of Business and Management, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
3. Katz Graduate School of Business, 236 Mervis Hall, University of Pittsburgh, Pittsburgh, PA 15260