The aim of this short note is to investigate the impact of duplicates in a life insurance portfolio by means of the supermodular order. Most classical results involving the variances are generalized using the stop-less order.

Do well-functioning stock markets and banks promote long-run economic growth? Recent studies answer this important question in the affirmative. This paper presents a reasonable extreme bounds analysis of the empirical relationships between the financial system and economic growth as well as the...

This paper proposes a Bayesian method of performance evaluation for investment managers. We begin with a flexible set of prior beliefs that can be elicited without any reference to probability distributions or their parameters. We then combine these prior beliefs with a general multi-factor...

Mixture sets were introduced by Herstein and Milnor (1953) into decision theory, where they are still widely used. This note clarifies the formal connection between mixture sets and convex sets. The results suggest that the former concept might be unnecessary for decision- theoretic purposes.

En se basant sur une revue de la litterature couvrant les dix dernieres annees, ce texte expose l'evolution de la conceptualisation de l'orientation marche. Une synthese des resultats des recherches empiriques les plus importantes sur les antecedents et les consequences de l'orientation marche...

A robust principal component analysis can be easily performed by computing the eigenvalues and eigenvectors of a robust estimator of the covariance or correlation matrix. In this paper the authors derive the influence functions and the corresponding asumptotic variances for these robust...

A profit-maximizing auctioneer can provide a public good to a group of agents. Each group member has a private value for the good being provided to the group. We investigate an auction mechanism where the auctioneer provides the good to the group, only if the sum of their bids exceeds a reserve...

The scaling properties encompass in a simple analysis many of the volatility characteristics of financial markets. That is why we use them to probe the different degree of markets development. We empirically study the scaling properties of daily Foreign Exchange rates, Stock Market indices and...

Game Theory is a general mathematical analysis to investigate the strategic interactions among players. Game theorists attempt to provide precise descriptions of situations of conflicting interests in order to study the behavior that such a conflict would (or, in some cases, should) elicit from...