This paper establishes, in the context of the Diamond (1965) overlapping generations economy with production, that the risk that savings in unbacked assets (like fiat money or public debt) become worthless implies that, not only the first-best steady state, but even the best steady state...

This paper analyses a growth model wherein saving results from bequestas-consumption. It first looks at the market equilibrium and at the optimal solution. Then it turns to the issue of decentralizing the optimal solution with various taxes and transfers. Depending on the available instruments,...

I show in this paper that in an overlapping generations economy with production à la Diamond (1970) in which the agents can only save in terms of capital (i.e. with no asset bubbles à la Tirole (1985) or public debt as in Diamond (1965)), there is a period-by- period balanced fiscal policy...

This paper analyses a growth model wherein saving results from bequest-as-consumption. It first looks at the market equilibrium and at the optimal solution. Then it turns to the issue of decentralizing the optimal solution with various taxes and transfers. Depending on the available instruments,...

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 study the optimal design of a social security system when individuals differ in health status and occupation. Health status is private information but is imperfectly correlated with occupation: individuals in harsh occupations are more likely to be in poor health. We explore the desirability...

One of the greatest success stories in our societies is that people are living longer, life expectancy at birth being now above 80 years. Whereas the lengthening of life opens huge opportunities for individuals if extra years are spent in prosperity and good health, it is however often regarded...

The achievements and limitations of the classical theory of optimal labor-income taxation based on social welfare functions are now well known, although utilitarianism still dominates public economics. We review the recent interest that has arisen for broadening the normative approach and making...

Nous proposons une méthode pour évaluer la capacité des systèmes de taxation du revenu de diminuer la pauvreté, lorsque celle-ci est définie en cohérence avec une notion de niveau de vie issue de l’éthique de la responsabilité. Selon cette éthique, toutes les inégalités ne sont pas...

We consider in this paper overlapping generations economies with pollution resulting from both consumption and production. The competitive equilibrium steady state is compared to the optimal steady state from the social planner's viewpoint. We show that the dynamical inefficiency of competitive...