We characterize optimal redistributive taxation when individuals are heterogeneous in their skills and their values of non-market activities. Search-matching frictions on the labor markets create unemployment. Wages, labor demand and participation are endogenous. Average tax rates are increasing...

We build a theoretical model to study whether a minimum wage can be welfare-improving if it is implemented in conjunction with an optimized nonlinear income tax. We consider this issue in a framework where search frictions on the labor market generate unemployment. Workers differ in...

We study optimal income taxation when labor supply reacts along the intensive and extensive margins. Individuals are heterogeneous across two unobserved dimensions: their skill and disutility of participation. We develop a new method to analytically derive conditions under which optimal marginal...

This article shows that in the context of a matching model with two imperfectly substitutable sectors, the coexistence of jobs characterised by different working hours can be explained by the capital intensities specific to each sector. Firms alone finance the capital used in the production...

This article surveys the economic theory that designs the optimal nonlinear income tax schedule that trades off the equity gains of a more progressive income tax schedule against the incentives to work less induced by such a more progressive income tax schedule. We take into account not only the...