Derek Neal (JPE 2004) used the NLSY79 to show that the observed median log wage gap between young white and young black women in 1990 underestimated the true, selection-corrected gap, i.e., the gap we would have expected to see had all of these women been employed in 1990. In this paper, we use...

We show that in a search/matching model with endogenous participation in which workers are heterogeneous with respect to market productivity, satisfying the Hosios rule leads to excessive vacancy creation. The reason is that the marginal worker does not internalize the effect of his or her...