This paper addresses optimal taxation, when the relationship between consumption and environmental damage is uncertain and treated as a random variable by policy makers. The main purpose is to analyze how additional uncertainty about this relationship affects the optimal unit tax on the...

Recent literature on optimal nonlinear taxation has shown that in models with a single level of government public provision of private goods can help redistribution by mitigating self-selection constraints. The aim of the present paper is to extend the analysis to a fiscal federalism setting...

The focus of the present paper is on the intragenerational effects of nonlinear income taxation in a multiperiod framework. We investigate whether it is possible to achieve redistribution at smaller efficiency costs by enlarging the message space adopted in standard tax system (which only...