“…Customers' perceptions of hotels and their suppliers' actions in each sub-dimension (environmental, social and economic) were measured by several items adopted from the previous studies. Items that are used to measure customers' perceptions of hospitality supply chain members environmental sustainability efforts included questions related to product design (Baker, 2009;Enz and Siguaw, 1999;Goodman, 2000), service process design Kassinis and Soteriou, 2003), product management during use (Enz and Siguaw, 1999;Goodman, 2000), product life extension (Goodman, 2000;Schendler, 2001), recycling Kasim et al, 2014), pollution control (Enz and Siguaw, 1999), environment management systems (Farsari, 2012;Goodman, 2000;Kasim et al, 2014;Schwartz et al, 2008). Items that measured customers' perceptions of hospitality supply chain members' social sustainability efforts included questions related to employees (Enz and Siguaw, 1999;Goodman, 2000;Schwartz et al, 2008), customers (Kasim et al, 2014;Kassinis and Soteriou, 2003;Schwartz et al, 2008), communities (Enz and Siguaw, 1999;Goodman, 2000;Schwartz et al, 2008), suppliers (Goodman, 2000), and governments .…”