The J-Curve Theory and the Black Urban Riots: An Empirical Test of Progressive Relative Deprivation Theory

A time-series analysis of individual level, perceptual data disconfirms the J-curve theory of the black urban riots (i.e., that they arise because a period of progress was followed by a sharp decline) and suggests that ambiguities surrounding black people's perceptions of their economic situation probably led to the frustration that culminated in urban violence.The methodological component of the research deals with such problems of relative deprivation-based research as: (1) the substitution of aggregate, objective-level indicators for perceptual theoretical concepts; (2) the correspondences between objective and perceptual data on both a point-by-point basis and across time-series patterns; (3) the empirical implications of failing to look at important subgroup distinctions; and (4) the crucial assumption of all forms of relative deprivation theory that future expectations of need fulfillment, especially in the period of rising satisfactions, are a function of current levels of need fulfillment. The research calls for modifications in the structure and application of relative deprivation theory in light of the findings in these areas.