Social norm effects hinge on beliefs that others will enforce them.

Evidence

However, we hypothesized that the salient distribution norm in the DG is for A to give 50 points to B; since subjects played the game anonymously and were randomly allocated to their roles and, hence, their endowments, there is no good reason why A should end up with more money than B, making the equality norm salient. … In addition, by asking B what punishment B expects C to impose on A, we receive information on the extent to which directly affected parties expect third-party norm enforcement, and how accurate their expectations are. This information is important because the impact of social norms on behavior should increase the more people believe in the presence of third-party norm enforcement. — Ernst Fehr, Third-Party Punishment and Social Norms, 28

Categorization

• XREF: Directly feeds the reading purpose: connects to Nowak & Sigmund’s image-scoring and how Hester’s visible A signals punishment expectancy, raising the cost of transgression. — connects to: Social norm enforcement may be a defining trait of humanity. — Ernst Fehr, Third-Party Punishment and Social Norms, 4; Costly norm enforcement by unaffected bystanders reveals strong reciprocity. — Ernst Fehr, Third-Party Punishment and Social Norms, 2; Social possibility rests on well-founded expectations about others’ conduct (+9 more)
• DEEPTHINKING: The claim that norms only bite when people believe enforcers exist — belief in third-party enforcement as the causal lever — is a genuinely dense, reusable insight about how reputation systems operate.

Related

• Social norm enforcement may be a defining trait of humanity. (similarity 0.88)
• Social norms remain one of the least understood forces in the behavioral sciences. (similarity 0.84)
• Social norms operate through common-knowledge approval and disapproval rather than enforcement. (similarity 0.82)
• Costly norm enforcement by unaffected bystanders reveals strong reciprocity. (similarity 0.81)
• People punish norm violations at personal cost even without direct harm (similarity 0.81)
• Multiple third-party punishers can make norm violations unprofitable, acting as strong norm enforcers. (similarity 0.80)
• Third-party punishment games enable empirical study of social norms. (similarity 0.79)
• Even unaffected bystanders punish norm violations at personal cost. (similarity 0.79)
• Directly harmed victims punish more strongly than unaffected third parties. (similarity 0.79)

Broader Connections

• Obligation arises when social pressure and general demand for conformity are intense #corroborates (0.82) — HLA Hart, The Concept of Law (Clarendon Law…, 299
• Pluralistic ignorance sustains norms even after private attitudes have shifted #exemplifies (0.80) — , The Rod and the Child, 7327
• Social possibility rests on well-founded expectations about others’ conduct #expands (0.78)
• Social norms make people present stable identities that others can trust #expands (0.75)
• Legal prohibition plus community normative work shifted behavior even in a non-welfare-state, diverse society #exemplifies (0.75) — , The Rod and the Child, 7363
• Closure in social relations is necessary for effective norms to emerge #expands (0.72) — Coleman, SocialCapitalCreation-1988, 114
• Background societal norms determine whether wariness or openness is the correct stance #expands (0.72) — Russell Hardin, Trust and Trustworthiness, 854