This paper attempts to analyze a technical change at the industry level by rendering explicit the investment behavior of the firms. The authors develop a model based on the assumption that production technology can be either modern or traditional. The probability that a firm modernizes is...

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...

Le but de l'etude consiste a analyser le processus de choix du type de formation retenu par les eleves en confrontant en particulier leurs voeux tels qu'ils les hierarchisent et la decision administrative finale d'affectation. Parmi les determinants qui font qu'un eleve va preferer poursuivre...