“Everyday” violence, such as robbery, burglary, or interpersonal assault, is endemic throughout much of the developing world, yet there has been relatively little research about its effects on social identity and intergroup relations. Using original data collected from an experiment embedded in a survey of over 1,000 people in Lagos, Nigeria, I empirically assess the impact of the acute threat of everyday violence, as well as actual victimization, on social identity, trust, and attitudes a...