Many scholars currently link the growth of a black underclass to the p
ersistence of racial tensions and riots in American cities. However, n
early all previous systematic studies of race riots refute these claim
s. We propose an alternative explanation that rests on competition pro
cesses. In this article we extend Spilerman's 1971 analysis of communi
ty characteristics and race riots to include 1954-93. Our results para
llel earlier ones that found little evidence that black poverty or rac
ial disparities in income, education, and occupation caused race riots
. Furthermore, we find that the effects of black poverty are generally
opposite from what most deprivation theories would lead us to expect.
Both low income for blacks and dilapidated housing significantly depr
ess the rate of racial unrest Finally, we find that competition that i
s expressed as the contraction of job opportunities for minorities cre
ated by demographic pressures and unemployment significantly increases
the rate of race riots.