A large-scale economic experiment, conducted on a representative sample of the US population, shows that cooperation creates special moral obligations. Participants in the experiment, acting as impartial spectators, transferred significantly more money to an unlucky worker when two individuals...

The marginal social value of income redistribution is understood to depend on both the concavity of individuals' utility functions and the concavity of the social welfare function. In the pertinent literatures, notably on optimal income taxation and on normative inequality measurement, it seems...

Should legal rules be chosen only on the basis of their efficiency or also on the basis of their distributional effects? This article demonstrates that redistribution accomplished through legal rules is systematically less efficient than redistribution accomplished through the income tax system...

A substantial literature addresses the design of transfer programs and policies, including the negative income tax, other means-tested transfers, the earned income tax credit, categorical assistance, and work inducements. This work is largely independent of that on the optimal nonlinear income...

This paper considers the optimal tax treatment of voluntary transfers to individuals in a" framework that integrates redistributive income taxation and estate and gift taxation. Under this" formulation, redistributive considerations become secondary. The optimal tax treatment of" transfers...

The federal income tax and major welfare programs do not take into account significant cost-of-living variations among regions. This article considers what adjustments might be appropriate in light of the distributive purposes of tax and welfare systems and concerns about the efficiency of the...

Should legal rules be chosen only on the basis of their efficiency or also on the basis of their distributional effects? This article demonstrates that redistribution accomplished through legal rules is systematically less efficient than redistribution accomplished through the income tax system...

Various authors, notably Eaton and Rosen (1980a) and Varian (1980), have proposed that income taxation may be justified to some extent on the ground that it serves as social insurance against uncertainties in labor income. They assume that private insurance is unavailable. primarily because of...