1. Department of Quantitative Methods of Business and Management, University Institute of Lisbon (ISCTE-IUL), 1649-026 Lisbon, Portugal
2. Imperial College London, Exhibition Rd, South Kensington, London SW7 2AZ, UK
3. School of Management, Hospitality and Tourism (ESGHT), Universidade do Algarve, Campus da Penha, 8005-246 Faro, Portugal
4. Research Centre for Tourism, Sustainability and Tourism (CinTurs), Universidade do Algarve, Campus de Gambelas, Edifício 8, 8005-139 Faro, Portugal
5. Faculty of Tourism, University of Malaga, C. de León Tolstoi, 4, Puerto de la Torre, 29010 Malaga, Spain