This paper presents a characterization of weak risk aversion in terms of preference for sure diversification. Similarly …, we show that strong risk aversion can be characterized by weakening preference for diversification, as introduced by … Dekel [11], in what we name preference for strong diversification. …

Risk diversification is the basis of insurance and investment. It is thus crucial to study the effects that could limit … occurrence, systemic risk can reduce dramatically the diversification benefits. It is clearly revealed via a non … it. One of them is the existence of systemic risk that affects all the policies at the same time. We introduce here a …

des entreprises en termes de diversification et de recentrage. …

L'objectif de cet article est de repérer les mouvements de recentrage et de diversification des entreprises non …

des comportements plus ou moins audacieux face à la diversification et privilégiera certaines formes plutôt que d … définition de la diversification dans le secteur n'est pas la même que celle qu'utilise le gestionnaire, l'opposition classique …

Expected Shortfall (ES) has been widely accepted as a risk measure that is conceptually superior to Value-at-Risk (VaR … desirable properties of risk measures like coherence, comonotonic additivity, robustness and elicitability. We check VaR, ES and … their impact on capital allocation, an important issue in risk management. We find that, despite the caveats that apply to …

stratégies de diversification produit des grands groupes industriels. Elle est désormais transposée dans le cadre d'un autre type …; Meyer, 2006). Dans ces recherches, on pense la diversification internationale sous l'angle des distances existant entre les …, telles que General Electric ou LVMH sont parvenues à associer diversification internationale et diversification produit non …