This study analyses trends in US male black-white earnings gaps by sub
-metropolitan residence, Large suburban earnings gaps existed in 1979;
however, central city gaps exhibited the largest increases during the
1980s. The increases are decomposed into changes in measurable charac
teristics, changes in the prices of measurable characteristics, change
s in discrimination and/or unobservable skills, and changes in white e
arnings inequality. Changes in measured characteristics and their pric
es, and changes in inequality account for little of the increases in c
entral city gaps, Either labour market discrimination worsened or raci
al differences in unobservable skills widened, A review of the literat
ure suggests that this paper's evidence is more consistent with a wors
ening in discrimination.