This paper examines the role of marriage markets in explaining racial
differences in the timing of marriage. Using data from the National Lo
ngitudinal Study of the High School Class of 1972, evidence is present
ed on the magnitude and significance of differences in the timing of f
irst marriage between whites and blacks in the United States. Further,
by matching the 1980 U.S. census to the longitudinal data, the effect
on the marriage decision of a variety of measures of the marriage mar
ket is examined. This paper examines marriage markets defined at vario
us levels of geographic aggregation, alternative definitions of what m
ales are considered ''marriageable,'' market variables that control fo
r the education level of the participants, and changes over time in ma
rriage markets. One of the primary results of the experimentation with
various definitions is that, relative to the local level, the variabl
es defined at the state level are able to account for more of the raci
al differences in the timing of marriage. The paper concludes with an
examination of this issue and reveals evidence that suggests that meas
urement error in the variables defined at the local level may be under
lying this result.