Growth curve data consist of repeated measurements of a continuous growth process over time in a population of individuals. These data are classically analyzed by nonlinear mixed models. However, the standard growth functions used in this context prescribe monotone increasing growth and can fail...

Our aim is to analyze the link between optimism and risk aversion in a subjective expected utility setting and to estimate the average level of optimism when weighted by risk tolerance. Its estimation leads to a non-trivial statistical problem. We start from a large lottery survey (1536...

This paper is a survey of existing estimation methods for pharmacokinetic/pharmacodynamic (PK/PD) models based on stochastic differential equations (SDEs). Most parametric estimation methods proposed for SDEs require high frequency data and are often poorly suited for PK/PD data which are...

In many different fields such as hydrology, telecommunications, physics of condensed matter and finance, the gaussian model results unsatisfactory and reveals difficulties in fitting data with skewness, heavy tails and multimodality. The use of stable distributions allows for modelling skewness...

Gibbs sampling has had great success in the analysis of mixture models. In particular, the “latent variable” formulation of the mixture model greatly reduces computational complexity. However, one failing of this approach is the possible existence of almost-absorbing states, called trapping...

In this paper, we implement Granger causalty tests using panel data as methodology perfected by Hurlin (2004, 2005) and Hurlin and Venet(2004). We consider the bilateral trade patterns of the European Union with 17 countries over the period 1976-2000. We show that for the whole sample, there are...

Nous proposons dans cet article d’étudier les effets de l’AFTA sur le commerce intra-zone de l’ASEAN par une analyse gravitationnelle en panel. Le modèle gravitationnel d’origine est enrichi des variables muettes « zone de libre-échange » qui captent, à la fois, les effets intra et...

Dans cet article, nous évaluons le positionnement des médecins généralistes en comparant leurs revenus à ceux de salariés situés dans le haut de la hiérarchie salariale : les cadres supérieurs. Les syndicats de médecins évoquent régulièrement la durée des études de médecine, les...