This paper studies the determinants of poverty dynamics in several rural areas from Madagascar. A particular attention is devoted to testing if rural poverty persistence in Madagascar could be explained by a vicious circle leading to a poverty trap. Annual poverty transitions retrieved from an...

Quelles sont les méthodes de prévision des ventes ? Comment concevoir des systèmes intégrés de prévision ? Comment les évaluer ? A ces questions Régis Bourbonnais et Jean-Claude Usunier apportent des réponses opérationnelles. Après avoir présenté les notions statistiques et...

We consider H expected utility maximizers that have to share a risky aggregate multivariate endowment X∈RN and address the following two questions: does efficient risk-sharing imply restrictions on the form of individual consumptions as a function of X ? Can one identify the individual utility...

Funded private pillars are well developed in many countries such as the United States, the United Kingdom, Canada, Switzerland and the Netherlands. In France, the development of occupational pension plans has been limited. However, in this country, households tend to increase their personal...

Given a multi-dimensional Markov diffusion X, the Malliavin integration by parts formula provides a family of representations of the conditional expectation E[g(X 2)|X1]. The different representations are determined by some localizing functions. We discuss the problem of variance reduction...

Given the low condom use and high prevalence in some African countries, this paper addresses the question of whether these evidences are driven by a supply-side or a demandside issue. The role of road infrastructures on HIV/AIDS outcomes is investigated using data from the Demographic and Health...

This paper reviews the literature on the impact of work on health. We consider work along two dimensions: (i) the intensive margin, i.e. how many hours an individual works and (ii) the extensive margin, i.e. whether an individual is in employment or not, independent of the number of hours...