The phenomenon of people adopting the actions or beliefs of others due to the perceived knowledge or competence of those individuals is a key concept in social psychology. This occurs most often when individuals are in ambiguous situations, lack expertise, or believe others possess more information. For example, a person unfamiliar with a particular cuisine might order what others at the table are ordering, assuming they have better knowledge of the menu.
This process contributes significantly to the formation of social norms and the transmission of cultural information. It can promote efficient decision-making in situations where individuals lack complete information and can lead to increased conformity within groups. Early research into conformity, such as the work of Muzafer Sherif, demonstrated the power of group norms to influence individual perceptions and judgments, highlighting the foundational importance of understanding this type of influence.