“…Server's preference for and opinions on tipping systems Casey (2001), Lin and Namasivayam (2011), Namasivayam and Upneja (2007), Roe (2011) Server's ability to predict tip amounts Barkan and Israeli (2004), Dombrowski, Namasivayam, and Bartlett (2007) Techniques to increase tip amounts Dyussembayeva, Viglia, Nieto-Garcia, and Mattila (2022), Fernandez et al (2020) , Garrity and Degelman (1990), Gueguen (2002), Gu eguen (2012), Gu eguen and Legoherel (2000), Hornik (1992), Hsiao, Chien, Yeh, and Huan (2022), Kinard and Kinard (2013), Lynn (1996, Lynn and Mynier (1993), Lynn and Simons (2000), Lynn, Le, andSherwyn (1998), Lynn, Giebelhausen, Garcia, Li, andPatumanon (2016), McCall and Belmont (1996), Parrett (2015), Rind (1996), Rind andBordia (1995, 1996), Rind andStrohmetz (1999, 2001a, b), Seiter, Givens, and Weger (2016), Seiter and Dutson (2007), Seiter and Gass (2005), Weger (2013, 2018), Strohmetz, Rind, Fisher, and Lynn (2002), Strohmetz and Rind (2001), van Baaren, Holland, Steenaert, and van Knippenberg (2003) Discriminatory service/tipping Brewster (2013Brewster ( , 2015, Brewster and Mallinson (2009), Brewster, Gourlay, and Nowak (2022),…”