This paper investigates the effect of ethnolinguistic conflict on redistribution. The analysis focuses on the conflict arising between "peripheral" minority groups and a dominant "center". We propose an index of linguistic conflict that (i) encompasses both diversity and polarization, and (ii)...

This paper studies optimal linear income taxation and redistributive social insurance when the former has the traditional labor distortion and the latter generates both ex ante and ex post moral hazard. Private insurance is available and individuals differ in labor productivity and in loss...

The Atkinson-Stiglitz Theorem states that if labor is weakly separable from goods in household utility functions, differential commodity taxation should not be not part of an optimal redistributive tax system. This Theorem, which is arguable the most policy-relevant result to come out of the...