1. College of Hospitality and Tourism Management, Sejong University, Seoul, Korea
2. Faculty of Economic Sciences and Business Administration, Transilvania University of Brașov, Romania
3. Independent researcher, Dubrovnik, Croatia
4. William F. Harrah College of Hospitality, University of Nevada, Las Vegas, NV, USA
5. College of Business Division of Tourism and Hotel Management, Cheongju University, Cheongju, Korea
6. Department of Hotel & Restaurant Management, Kyunghee Cyber University, Seoul, Korea