Abstract

Applications and conceptual developments made in social identity research since the mid-1990s are summarized under eight general headings: types of self and identity, prototype-based differentiation, influence through leadership, social identity motivations, intergroup emotions, intergroup conflict and social harmony, collective behavior and social protest, and resolving social dilemmas. Cautious prognoses for future directions are then suggested—health, e-behavior, population relocation and immigration, culture, language and intergroup communication, societal extremism and populism, social development, and inclusive and diverse social identities.