This paper reviews the SWFL approach to social choice. It does not attempt to be a complete and systematic survey of existing results, but to give a critical assessment of the main axioms and their role in filtering the ethically relevant information, in particular the measurability and...

We consider a model of successive generations with a fixed proportion of selfish and altruistic members in each individual's offspring. In contrast with the others, selfish members bequeath nothing to their own children. We assume that parents cannot recognize their heirs' types and that...

The formulation of the problem of justice among generations as the problem of finding an ordering of infinite utility streams is examined within the social welfare functional approach to social choice. This formulation usually presumes a double reduction, not only the classical welfarist...

In applying the common agency framework to the context of an oligopolistic industry, we want to go beyond the classical dichotomy between Cournot and Bertrand competition. We define two games, the oligopolistic game and the corresponding concept of oligopolistic equilibrium, and an associated...

We present a new version of the overtaking criterion, which we call generalized time-invariant overtaking. The generalized time-invariant overtaking criterion (on the space of infinite utility streams) is defined by extending proliferating sequences of complete and transitive binary relations...

[eng] Price competition and cournotian equilibria. . Contrary to a widespread belief, strategie choices described by the Cournotian model are not confined to quantities. Only, price strategies are constrained by the fact that « the priee is necessarily the same » for producers of a homogeneous...