“…Inputs include labor (full-time equivalent [FTE]), costs of labor, hours worked, average wages, price of capital, price of materials, total costs (Reynolds 2003; Barros 2004, 2005a), ownership forms of hotels (Oliveira, Pedro, and Marques 2013b; Ortega and Chicón 2013; Perrigot, Cliquet, and Piot-Lepetit 2009), surface area in square meters, rooms and median price (Brown and Ragsdale 2002; Tsaur 2001; Wang, Hung, and Shang 2006), customer satisfaction (Assaf and Magnini 2012), hotel star-rating (Oliveira, Pedro, and Marques 2013a), natural resources (Hadad et al 2012), the role of information communication technologies (Li 2014; Sigala 2003), the number of schooling years of staff (Ortega and Chicón 2013), nights slept (Barros and Santos 2006), and the number of years in business (Assaf and Agbola 2011). Surprisingly, tourist numbers or number of guests were used in relation to both aspects of hospitality: as an input measure (Ashrafi et al 2013) and an output measure, as seen in many of the studies mentioned previously.…”