“…We first consider norms, defined here as “rules and standards that are understood by members of a group, and that guide and/or constrain social behavior without the force of law” (Cialdini & Trost, 1998, p. 152). The relevance of social interactions, normative standards, and trust in forming actions and behaviors has been stressed in the literature (Uslaner, 2000; Bicchieri, 2005; Rothstein & Uslaner, 2005; Hoffman, 2007; Fieldhouse & Cutts, 2021; Fieldhouse et al., 2022). In particular, giving is likely to be influenced by personal psychology but also by the behavior of the subject's reference group, a point related to the concept of descriptive norms, i.e., what is (perceived to be) “normal” or what most people do in a particular context (Cialdini et al., 1990).…”