“…Recently, this problem has been the subject of an intensive methodological debate about the role of laboratory experiments in economic research (see, e.g., Levitt and List, 2007;Falk and Heckman, 2009;List, 2009;Bardsley et al, 2010;Croson and Gaechter, 1 Social preferences have been formalized in terms of inequity aversion (Fehr and Schmidt, 1999;Bolton and Ockenfels, 2000), fairness intention (Rabin, 1993;Dufwenberg and Kirchsteiger, 2004;Falk and Fischbacher, 2006), type-based reciprocity (Levine, 1998), preferences for social welfare (Charness and Rabin, 2002), and concerns for social reputation or self-respect (Benabou and Tirole, 2006;Ellingsen and Johannesson, 2007). These theories proved to be helpful in organizing the data and have been applied to many important economic questions such as contract theory (Fehr et al, 2007;Bartling and von Siemens, 2010), the role of fairness in the process of institution formation (Kosfeld et al, 2009), the analysis of bargaining outcomes (Goeree and Holt, 2000), or the examination of counterproductive incentive effects (Benabou and Tirole, 2006;Ellingsen andJohannesson, 2007, 2008). 2010; Henrich et al, 2010). The most prominent arguments against the generalizability of laboratory findings include concerns about low monetary stakes, self-selected student participants, short examinations periods, and high degrees of scrutiny.…”