“…Social preference theories assume that at least some players take into account not only their own payoffs, but also the payoffs of others (e.g., Andreoni, Brown, & Vesterlund, 2002;Levine, 1998;Loewenstein, Thompson, & Bazerman, 1989) or the relation between their own and others' payoffs (e.g., Bolton, 1991;Bolton & Ockenfels, 2000;Dehue, McClintock, & Liebrand, 1993;Fehr & Schmidt, 2006;Liebrand & McClintock, 1988). In the Allportian tradition, social preferences are frequently assumed to be stable characteristics of the player that are faithfully expressed across time and contexts (Camerer & Thaler, 1995;Loomes, 1999).…”