This paper highlights the possibility that negative marginal tax rates arise in an intensive-margin optimal income tax model where wages are exogenous and preferences are homogeneous, but where agents differ both in skills (labor market productivity) and their needs for a work-related...

We study a setting where anti-discrimination legislation gives rise to adverse selection in the labor market. Firms rely on nonlinear compensation contracts to screen workers who differ in their family/career orientation. This results in a labor market equilibrium where career-oriented workers...