 An influential view of norms considers them as clusters of self-fulfilling expectations (Schelling 1960), in that some expectations often result in behavior that reinforces them. A related view emphasizes the importance of conditional preferences in supporting social norms (Sugden 2000). In particular, according to Bicchieri’s (2006) account, preferences for conformity to social norms are conditional on “empirical expectations” (i.e., first-order beliefs that a certain behavior will be followed) as well as “normative expectations” (i.e., second-order beliefs that a certain behavior ought to be followed). Thus, norm compliance results from the joint presence of a conditional preference for conformity and the belief that other people will conform as well as approve of conformity.