In this paper we develop a differentiable approach to deal with incentives in a, possibly small, subset of a general domain of preferences in economies with one public and one private good. We show that, for two agents, there is no social rule which is efficient, nondictatorial and...

In this paper we present a fixprice model in which private and public consumption show some degree of substitution. We offer formulae for the Keynesian multiplier which depend on this degree of substitution. We also show that there is a Pigou effect and that, sometimes, this effect is larger...

In this paper we present a set of axioms guaranteeing that, in exchange economies with or without indivisible goods, the set of Nash, Strong and active Walrasian Equilibria all coincide in the framework of market games.

So far, the Theory of Distributive Justice has tried to single out a unique criterion of Justice. In our opinion, we live in a world in which different people hold conflicting ideas about justice. We propose a procedure for representing these individual opinions, by means of what we call...

In this paper we explore the notion that players are decent, in the sensethat their choices are bound by certain unwritten social rules. We apply thisidea to two cases: bankruptcy and bargaining in exchange economies. Wecharacterize the results that are generated by such a behavior in the cases...

The theory of mechanism design and implementation abounds with clever mechanisms whose equilibrium outcomes are optimal according to some social choice rule. However, the cleverness of these mechanisms relies on intricate systems of rewards and punishments off-the-equilibrium path. Generally, it...

We provide an elementary proof showing how in economies with an arbitrary number of agents an arbitrary number of public goods and quasi-Linear utility functions, any efficient and individually rational mechanism is not strategy-proof for any economy satisfying a mild segularity requirement.

In this paper we study the effects of a change in some exogenous variable (the number of players or a parameter in the payoff functions) on the strategies played and payoffs obtained in a Nash Equilibrium in the framework of a Market Game (a generalization of the Cournot model). We assume a...