1. Department of Tourism and Hospitality Management, Temple University, Philadelphia, PA, USA
2. Department of Marketing, University of Portsmouth, Portsmouth, England, United Kingdom
3. Department of Economics and Political Science, University of Aosta Valley, Aosta, Italy
4. J. Willard and Alice S. Marriott Professor, Howard Feiertag Department of Hospitality and Tourism Management, Virginia Polytechnic Institute and State University, Pamplin College of Business, Virginia Tech, Blacksburg, VA, USA