1. Faculty of Applied Sciences, WSB University, 41-300 Dąbrowa Górnicza, Poland
2. CITUR Madeira–Centre for Tourism Research, Development and Innovation, 9000-082 Funchal-Madeira, Portugal
3. College of Business and Economics, University of Johannesburg, P.O. Box 524 Auckland Park, Johannesburg 2006, South Africa
4. Azores Sustainable Tourism Observatory (OTA), Centre of Applied Economics Studies of the Atlantic (CEEAplA), University of the Azores, 9500-321 Ponta Delgada, Portugal
5. School of Business and Economics, Centre of Applied Economics Studies of the Atlantic (CEEAplA), University of Azores, 9500-321 Ponta Delgada, Portugal