A theory of delinquency and delinquent subcultures developed by Richard Cloward and Lloyd Ohlin in Delinquency and Opportunity ( 1960 ). Cloward and Ohlin made use of Robert K. Merton 's observations that legitimate opportunities to pursue culturally approved goals are socially structured and unevenly distributed—especially by class. Differential-opportunity theory extends this notion of socially structured unequal access to delinquency and criminality. Drawing on Edwin Sutherland 's work on forms of delinquent and criminal socialization, Cloward and Ohlin suggested that the social structure of a community determines access to both the learning and performance structures that underwrite career delinquency and criminal subcultures.
Opportunities to excel materially in America are not equally available. The theory states that where opportunities are not present -- through violence, endemic poverty, poor education or widespread drug abuse (to name a few)-- crime increases. Intuitively, this makes common sense, and was adopted writ-large by the US policymakers from the Kennedy administration through the Bush II. Then, along came the Great Recession and turned the empirical support for the theory on its head. (See "More Povery = More Crime theory debunked)