1. Center for Trans-Himalaya Studies, Leshan Normal University, Leshan, Sichuan, China
2. Institute of Management, University of Szczecin, Szczecin, Poland
3. Faculty of Economics, West Pomeranian University of Technology, Szczecin, Poland
4. Department of Economics, University of Messina, Messina, Italy
5. Doctoral School, Institute of Management, University of Szczecin, Szczecin, Poland