This paper addresses the issue of optimum population with two concerns : avoiding both the absolute repugnant solution that amounts to givingg to an infinite number an infinitesimal amount and the marginal repugnant solution in which equilibrium consumption decreases with income. To avoid these...

This paper examines the long-run behavior of an overlapping-generations model with a population consisting of altruistic and non-altruistic agents. It also studies the effect of fiscal policy on aggregate capital accumulation and on the welfare of both types of agents. It shows that an increase...

It is generally accepted that moving from an unfunded to a funded social security sys- tem implies a welfare loss for the transition generation, that is the generation that has to pay twice: first, saving for its own retirement and second, contributing to the pensions of the then retired...

This paper presents an overlapping generations model of growth with individuals differing in productivity and altruism. Within such a model wealth is entirely held in the steady-state by the families with the highest degree of altruism. We then look at the macroeconomic and distributive effects...

This paper extends the notion of Cournot-Walras equilibrium introduced by Codognato and Gabszewicz (1991) in a particular context (homogeneous oligopoly) to a general class of pure exchange economies. Some examples are considered, corresponding to oligopolistic structures analyzed in partial...

This paper analyzes the role of the structure of skills in economic development through investment in human capital. With a lack of credit market for education and the presence of indivisibilities in investment in human capital as well as of congestion in the educational system, the initial...

This paper studies the determination of public investment in environmental quality when there are private alternatives. Public investment is chosen by majority voting. When consumption and environmental quality are complementary one may observe a solution of the type "ends against the middle".

In this paper, we study the distribution of wealth in an economy with infinitely lived families. Individual generations of each family may or may not be altruistic. This is represented as a preference shock which follows a first-order Markov process within each family, a feature representing...

This paper explains why workers retire earlier, and earlier at the same time as society becomes more and more indebted through increasing pay-as-you-go pension liabilities. To do so, we extend the standard twooverlapping-generations growth model to allow for endogenous labor participation in the...