Ethnic Diversity

Ethnic diversity refers to the presence of multiple ethnic groups within a society, community, or organization, each with distinct ancestry, language, religion, customs, or identity. It is shaped by migration, colonialism, conquest, and the persistence of indigenous and minority populations, and it is measured through indices such as ethnolinguistic fractionalization. Franz Boas promoted cultural relativism and challenged racial hierarchies, while Robert Park and the Chicago School studied how ethnic groups interact in cities. Will Kymlicka developed a theory of multicultural citizenship, and Charles Taylor argued for a politics of recognition. Robert Putnam’s research suggested that diversity may reduce social trust in the short run, a finding contested by later studies that stress contact and context. Steven Vertovec introduced the idea of super-diversity to describe complex, layered patterns of migration, and Gordon Allport’s contact hypothesis explained how interaction can reduce prejudice. Alberto Alesina and colleagues linked fractionalization to public goods provision. Critics argue that celebrating diversity can overlook inequality and racism. Ethnic diversity remains central to research on migration, integration, cohesion, education, and political representation.