Affiliation: | 1. College of Business and Economics, Qatar University, P.O. Box 2. 2713, Doha, Qatar;3. I.H. Asper School of Business, University of Manitoba, Winnipeg, Manitoba, Canada R3T 5V4;4. Department of Social and Preventive Medicine at the University of Montreal, Montreal, QC, Canada;5. Fax: + 1 204 474 7545. |