1. Department of Marketing, School of Business and Economics, Linnaeus University, Växjö, Sweden
2. Sabanci Business School, Sabancı University, Istanbul, Turkey
3. Faculty of Health Sciences, Istanbul University – Cerrahpasa, Istanbul, Turkey
4. School of Economics and Business, Åbo Akademi University, Turku, Finland
5. Department of Statistics, Mimar Sinan FA University, Istanbul, Turkey