Article révisé par les pairs
Résumé : Using an ego‐centered network approach, we examine across two studies whether and how injunctive network norm s—behaviors that are approved by alters—are related to majority members’ decisions to participate in helping actions supporting migrants. We hypothesize that the more people perceive their personal social networks as positive toward humanitarian actions for migrants, the more they consider their opinions on migration issues as self‐defining, and the more they are willing to mobilize in helping behaviors. With a name generator approach, we collected personal social network data among majority members of Belgian, mobilized volunteers (Study 1, N =204) and Swiss, non‐mobilized participants (Study 2, N =247). Results demonstrate the impact of injunctive network norms in promoting and maintaining helping actions for migrants, and the role of self‐defining attitudes. Overall, the results highlight the importance of injunctive norms within personal social networks on participation in intergroup helping behaviors.