1. College of Business, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates
2. Department of Business Administration, Faculty of Commerce, Tanta University, Tanta 6632110, Egypt
3. Business Management Departement, School of Management, Swansea University, Swansea SA2 8PY, UK
4. Faculty of Economic Sciences, University of Warsaw, ul. Długa 44/50, 00-241 Warszawa, Poland