We present an econometric analysis of the effect of long term nutritional conditions on school achievement. We control potential selectivity bias, which is common in this literature, (i) either by restricting the sample, (ii) or by applying a two step Heckman procedure. For Malagasy data, we...

In this article, tests for globalization and contagion are separated using an ex ante definition of crises, and contagion tests are neutralized with respect to globalization effects. A large database is constructed to study the stability of correlation matrices for four asset classes : equities,...

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...

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...

This paper uses a French reform to evaluate the impacts of price regulation on general practitioners (GP) care provision, fees, and income. This reform has restricted, since 1990, the conditions self-employed GPs have to fulfill to be allowed to over-bill. We exploit 2005 and 2008 Public Health...

The main purpose of this paper is to demonstrate the effect of debt overhang on real equilibrium exchange rate. Using a panel of twenty Sub-Saharan African countries, we find a non linear effect of external public debt on real exchange rate. External public debt negatively affects the real...