Since 1995, labor economists have reported on the income disparities between individuals who engage in same-sex behavior and those that do not. Many of these papers report a significant wage penalty, while others find no effect, but few look at the trend over time. We find, using National Health...

This paper sheds new light on the effects of the minimum wage on employment from a two-sided theoretical perspective, in which firms’ job offer and workers’ job acceptance decisions are disentangled. Minimum wages reduce job offer incentives and increase job acceptance incentives. We show...

Empirical evidence shows that competition among firms generates steep incentives inside firms. Incentive pay stimulates productive investments but may generate inefficient rent-seeking investments. I show that competition reduces firms’ profits and thereby the inefficient investments, which...

This article investigates whether faculty members are rewarded for teaching. We find that teaching a wider variety of courses and devoting more time to teaching results in a significant wage penalty, even when research productivity is carefully controlled.

Using cross-industry survey data, I examine how the determinants of the pace of work affect the probability of using piece rates. Internal determinants raise the likelihood of piece rates, while response to external needs lowers the probability.

In any nonlinear “difference-in-differences” model with strictly monotonic transformation function, the treatment effect is the cross difference of the observed outcome minus the cross difference of the potential non-treatment outcome, which equals the incremental effect of the interaction...

This note discusses partial identification in a nonparametric triangular system with discrete endogenous regressors and nonseparable errors. Recently, Jun et al. (2011, JPX) provide bounds on the structural function evaluated at particular values using exclusion, exogeneity and rank conditions....

This paper deals with the question whether exclusion restrictions on the exogenous regressors are necessary to identify two equation probit models with endogenous dummy regressor. We show that Wilde (2000)’s criterion is insufficient for (point) identification.

I derive a rigorous method to help determine whether a true parameter takes a value between two arbitrarily chosen points for a given level of confidence via a multiple testing procedure which strongly controls the familywise error rate. For any test size, the distance between the upper and...

This study investigates the identification of parameters in semiparametric binary response models of the form y=1(x′β+v+ε0) when there are nonignorable nonresponses. We propose an estimation procedure for the identified set, the set of parameters that are observationally indistinguishable...