[1] Univ Politecn Cartagena, Fac Ciencias Empresa, Dept Econ Empresa, Campus CIM C-Real 3, Cartagena 30201, Spain
[2] Univ Algarve, CinTurs, Res Ctr Tourism, Sustainabil, P-8005139 Faro, Portugal
[3] Jefatura Super Policia Reg Murcia, Pl Ceballos 13, Murcia 30003, Spain
[4] Univ Politecn Cartagena, Escuela Tecn Super Ingn Ind, Dept Estruct Construcc & Expres Graf, Campus Muralla Mar C-Dr Fleming S-N, Cartagena 30202, Spain
[5] Univ Algarve, Sch Management Hospitality & Tourism, P-8005246 Faro, Portugal
[6] Univ Malaga, Fac Turismo, Malaga 29010, Spain