We study the effects of a conditional transfers program on school enrollment and performance in Mexico. We provide a theoretical framework for analyzing the dynamic educational decision and process including the endogeneity and uncertainty of performance (passing grades) and the effect of a...

Focus of this work is on the contract known as actions-incentive. We suppose it applies to a group of producing farmers of a positive externality. This externality is perceived as a public asset which the society wishes to remunerate. When then analyse the pros and cons and the conditions...

The relationship between collusion on the product market and the resulting impact on the labour market is ambiguous in non-union models. Considering a dual labour market with qualified and unqualified workers, and taking into account the efficiency effect when employing qualified workers allows...

We develop and estimate a model of dynamic interactions where conmmitment is limited and contracts are incomplete to explain the patterns of income and consumption in village economies of less developped countries. Households can insure through both formal contracts and informal agreements, that...

In many countries, a reversing trend in the evolution of the hired labour force in agriculture was observed : its share in the agricultural employment which had decreased regularly since decades has increased for the last ten years. We propose an analysis of the factors bearing upon the...

Ce papier présente une nouvelle approche pour l'évaluation empirique des élasticités de demande d'importation. Cette approche utilise un système de demande d'importation flexible (Almost Ideal Demand System : AIDS) couplé d'un modèle économétrique incorporant une spécification du terme...

This paper develops and estimates a structural model of imperfect competition in international markets. The model incorporates a flexible non-linear demand framework with structural price equations. A general conjonctural variation approach is developed to characterize strategic interaction....

In this paper, we study the determinants of the value of informal risk sharing groups. In particular, we look at the effects of heterogeneity of preferences and of limited commitment constraints that restrict feasible allocations differently if individuals can deviate form risk sharing...

The aim of this paper is to study the adoption and diffusion process of Information and Communication Technologies (ICT) in firms located in low density areas. We analyse the relationships between organizational and environmental factors and the firms' ICT uses in order to reveal their...

This report is about framework and processes of the setting up of reserved areas for industrial and services activities in urban planning. In France, planning documents are revised by period. A study was carryed out during a recent revision period, to analyse this process regarding the resources...