This paper revisits, in an environmental context, the vertical restraints literature as developed by Bonanno and Vickers (1988), Gal-Or (1991), Lin (1988) or Nakache and Soubeyran (1998) in an oligopolistic and deterministic situation. This literature considers constant returns to scale at the...

Cet article interroge la relation souvent etablie entre la stabilite d'un parcours professionnel et le faible risque de perdre son emploi. Les jeunes avec un nombre eleve d'emplois passes ont-ils reellement plus de chances de perdre leur nouvel emploi, ou s'agit-il seulement d ; un artifice...

In the context of capital accumulation games this paper proposes two concepts that describe the interactions between agents and give a counterpart, in a symmetric infinite horizon framework, of the well known Fudenberg and Tirole's Taxinomy concerning investment strategies in two-stage games.

This paper describes a methodology for implementing bidirectional/break frequency-selective filters in cases where the data sequence is short and nonstationary. A sime method is proposed for dealing with start-up problem. The method has a firm theoretical basis and it is computationally efficient.

Simplex is a geometric figure which is extensively used in economic theory. Depending on the needs of the theory, a simplex S is sometimes cut with a hyperplane H, which separates it into two parts T and T'. It may be useful to appreciate the manner in which the simplex in cut. One mode of...

Le modele est constitue d'un tournoi entre deux employes d'une organisation hierarchique. Ces deux employes, initialement dans le meme poste, sont places en competition et celui qui realise le niveau de production le plus eleve obtient une promotion dans un poste, appele poste superieur. Les...

L'objet de cet article est d'approfondir la question de la definition de la solvabilite de l'Etat. A la question, jusqu'où l'Etat peut-il s'endetter ? nous repondons que l'endettement public acceptable, ne conduisant pas à la faillite, est celui qui reste compatible avec un fonctionnement...

Our aim is to explain why the pattern of relative unemployment rates by education groups was non monotonic in most of the OECD countries. In a two-sector matching model, a simple unexpected productivity shock biased against unskilled labor can replicate the observed dynamics. Effects of...

Dans ce document nous estimons le modele collectif d'offres de travail de Chiappori et al. (1998) sur donnees francaises recentes en simulant la contrainte budgetaire des menages. Pour cela nous avons pris en compte l'impot sur les revenus ainsi que les principales prestations familiales. Les...

We consider the search behaviour of an infinite lifetime worker whose expected matching gains are assumed to be decreasing over the spell of unemployment. The search effort is linked positively to future earnings and negatively to the worker's reservation wage. We show that this may give rise to...