A simple mod el of linear taxation is used to single out different types of tax equilibria. S ufficient conditions for national income to be a decreasing function of the marg inal tax rate are given for each case. Equilibria are classified according to wh ether (1) aggregate labor supply is...

Which strategy-proof nonbossy mechanisms exist in a model with a finite number of indivisible goods (houses, jobs, positions) and a compensating perfectly divisible good (money)? The main finding is that only a finite number of distributions of the divisible good is consistent with...

In a voting model where the set of feasible alternatives is a subset of a product set $A = A_1\times\cdots\ldots{}A_m$ of $m$ finite categories, we characterize the set of all strategy-proof social choice functions for three different types of preference domains over $A$, namely for the domains...