1. Department of Geography and Rural Planning, Tehran 1411713116, Iran
2. Department of Management, Marketing, and Tourism, University of Canterbury, Christchurch 8140, New Zealand
3. Geography Research Unit, University of Oulu, 90014 Oulu, Finland
4. Department of Service Management and Service Studies, Lund University, 22100 Lund, Sweden
5. School of Business and Economics, Linnaeus University, 35195 Växjö, Sweden
6. The College of Hotel & Tourism Management, Kyung Hee University, Seoul 02447, Republic of Korea
7. The IDEC Institute, Hiroshima University, Hiroshima 734-8553, Japan