Data contamination and excessive correlations between regressors (multicollinearity) constitute a standard and major problem in econometrics. Two techniques enable solving these problems, in separate ways: the Gini regression for the former, and the PLS (partial least squares) regression for the...

L’économie des inégalités est une partie non négligeable de l’économie publique et du domaine de la justice sociale. Pour apprécier l’efficacité d’un principe de justice sociale (commutative, distributive, locale, etc.), les mesures d’inégalité sont souvent utilisées. Elles...

Etude pour le Ministère de l'Ecologie, du Développement Durable et de l'Energie.

Standard kernel density estimation methods are very often used in practice to estimate density function. It works well in numerous cases. However, it is known not to work so well with skewed, multimodal and heavy-tailed distributions. Such features are usual with income distributions, defined...

We revisit Machina's local utility as a tool to analyze attitudes to multivariate risks. Using martingale embedding techniques, we show that for non-expected utility maximizers choosing between multivariate prospects, aversion to multivariate mean preserving increases in risk is equivalent to...

The present research relaxes three of the usual assumptions made in the insurance literature. It is assumed that (1) there is a finite number of risks, (2) the risks are not statistically independent and (3) the structure of the market is monopolistic. In this context, the article analyses two...

This paper develops a theoretical framework for analyzing the decision to provide or buy insurance against the risk of natural catastrophes. In contrast to conventional models of insurance, the insurer has a non-zero probability of insolvency which depends on the distribution of the risks, the...

This paper develops a theoretical framework for analyzing the decision to provide or buy insurance against the risk of natural catastrophes. In contrast to conventional models of insurance, the insurer has a non-zero probability of insolvency which depends on the distribution of the risks, the...