The Atkinson-Stiglitz Theorem shows that with weakly separable preferences, differential commod- ity taxes are not needed if an optimal nonlinear income tax is imposed. Redistributive objectives can be achieved with the income tax alone even if goods differ considerably in their income...

We present a survey of key results from second-best optimal redistribution theory and their implications for tax-transfer policy. The core results include the Corlett-Hague theorem, the Deaton conditions, the production-efficiency theorem, the Atkinson-Stiglitz theorem, and the Mirrlees-Saez...

We study optimal nonlinear income taxation when earnings can differ because of both ability and luck, so the income tax has both a redistributive role and an insurance role. A substantial literature on optimal redistribution in the absence of uncertainty has evolved since Mirrlees’ original...

Many things inform a country’s choice of tax system, including political considerations, public opinion, bureaucratic complexities, and ideas drawn from theoretical analysis. In this book, Robin Boadway examines the role of optimal tax analysis in informing and influencing tax policy design....