“…Following the comprehensive study of Nielsen (2014), the senior tourist market has encouraged researchers to investigate in this field and examine various topics, especially in relation to constraints (Huber, Milne, & Hyde, 2018); accommodation (Anuar, Musa, Khalid, & Anderson, 2017;Losada et al, 2017); length of stay and frequency of travel (Alén, Nicolau, Losada, & Domínguez, 2014;Losada, Alén, Domínguez, & Nicolau, 2016);motivation and spirituality (Alén, Losada, & de Carlos, 2015;Moal-Ulvoas, 2017;Moal-Ulvoas, 2016;Patuelli, & Nijkamp, 2016); and cognitive age (Le Serre et al, 2017).…”