While there is compelling evidence that married men earn more than unm
arried men, the source of this premium remains unsettled. Using panel
data from the National Longitudinal Survey of Young Men, we show that
much of the premium normally attributed to marriage is associated with
unobservable individual effects that are correlated with marital stat
us and wages. To the extent there is a gain, it is purely an intercept
shift and no more than 5% to 7%. Our findings cast doubt on the inter
pretation that marriage enhances productivity through specialization.