The good things I should (not) have done: social norms modulate regret following prosocial action and inaction

= 425). When norms discouraged helping, participants anticipated more regret following action, compared to inaction. However, when workplace norms encouraged helping, participants anticipated more regret following inaction. Moreover, participants expected actors to be less willing to help in the future than non-actors, especially under weak prosocial norms. These findings show that anticipated regret and behavioural intentions following prosocial action or inaction depend on social norms, suggesting that what people perceive as common behaviour shapes expected emotions and intentions in moral domains.