1. Department of Recreation, Sport and Tourism, College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, USA
2. Department of Tourism and Hospitality Management, Temple University, Philadelphia, PA, USA
3. School of Hospitality and Tourism Management, University of Surrey, Guildford, UK
4. College of Tourism and Service Management, Nankai University, Tianjin, People’s Republic of China