How much and how to tax high-income individuals is at the core of many recent proposals for incremental as well as fundamental tax reform. This paper critically reviews the economics literature and concludes that the right answer to these questions depends in part on value judgments about which...

An optimal linear world income tax that maximizes a border-neutral social welfare function provides a drastic reduction in world consumption inequality, dropping the Gini coefficient from 0.69 to 0.25. In contrast an optimal decentralized (i.e., within countries) redistribution has miniscule...

In this paper we develop some simple models of optimal tax and tariff policy in the presence of global corporations that operate in an imperfectly competitive environment. The models emphasize two important differences in the practical application of tax and tariff policy - tax, but not tariff,...