This paper demonstrates that aggregate losses are necessarily low as long as we remain under the standard assumptions of LDA models. Moreover empirical findings show that the correlation between two aggregate losses is typically below 5%, which opens a wide scope for large diversification...

This paper demonstrates that aggregate losses are necessarily low as long as we remain under the standard assumptions of LDA models. Moreover empirical findings show that the correlation between two aggregate losses is typically below 5%, which opens a wide scope for large diversification...

[fre] Le bien-fondé de la prise en compte des risques opérationnels (RO) dans la réforme Bâle II est maintenant couramment admis au sein de l'industrie financière. Au-delà des catastrophes majeures, qui peuvent expliquer son intégration dans le pilier I du futur dispositif prudentiel, la...

[fre] Cet article vise à présenter les grandes lignes du modèle risques opérationnels AMA (Approche de mesure avancée) du groupe Crédit Agricole SA, à en restituer les principaux enseignements et enfin à apporter un éclairage sur des questions encore en cours de discussion (notamment...

Fund selection is an important issue for investors. This topic has spawned abundant academic literature. Nonetheless, most of the time, these works concern only active management, whereas many investors, such as institutional investors, prefer to invest in index funds. The tools developed in the...

Portfolio construction and risk budgeting are the focus of many studies by academics and practitioners. In particular, diversification has spawn much interest and has been defined very differently. In this paper, we analyze a method to achieve portfolio diversification based on the decomposition...

Risk parity is an allocation method used to build diversified portfolios that does not rely on any assumptions of expected returns, thus placing risk management at the heart of the strategy. This explains why risk parity became a popular investment model after the global financial crisis in...