On enregistre depuis plusieurs annees une tres forte progression du recours a la sous-traitance. Il a donc paru opportun de proposer une analyse empirique des strategies de recours a la sous-traitance au regard de la relation impot-emploi.

Notre premier propos, theorique, est d'elaborer une regle de classification en intrants et en extrants des differents arguments de la fonction de profit bancaire. Nous l'utilisons ensuite dans notre etude empirique de 38 banques francaises de reseau.

Cet article etudie l'impact du pouvoir de marche des entreprises sur le taux de chomage d'equilibre. La premiere partie expose les fondements microeconomiques du pouvoir de marche des entreprises, dans une perspective a la fois empirique et theorique. La deuxieme partie montre que les modeles...

The main objective of this paper is to analyze the links between product market competition, innovation and growth. We capture the idea that firms innovate in order to try to escape - albeit temporarily - from the pressure of competition exerted on them by their rivals. At each date, an industry...

New economic geography models predict migration flows from peripheral regions toward central ones. Agglomeration occurs in these models because firms, which tend to locate in large demand regions, and workers, who look for high real wages, are driven by the same force defined by the market...

This paper studies the aggregate implications of microeconomic investment irreversibility and idiosyncratic uncertainty. We explore the ability of irreversibility to endogenously generate differences in firms sizes.

We consider a general equilibrium model with a production sector. The consumption sets, the preferences of the consumers and the production possibilities are represented by set-valued mappings to take into account the possibility of external effects. There are no convexity assumptions on the...

L'origine de ce travaial reside dans la question, dite teleologique, de la justification de scenarios determines par optimisation intertemporelle, pour les modeles macroeconomiques d'une economie non planifiee, mais susceptible de regulation. On aborde cette question par un approche constructive...

In this paper, we define and study a new class of optimal stochastic control problems which is closely related to the theory of Backward SDE's and forward-backward SDE's. The controlled process takes values in RXR and a given initial data for X(O). Then, the control problem is to find the...

In this paper we propose two algorithms for solving both unweighted and weighted constrained two-dimensional two-staged cutting stock problems. The problem is called two-staged cutting problem because each produced (sub) optimal cutting pattern is realized by using two cut-phases.