Is there a gain to explicitly modelling extremes? A risk management analysis

When risk managers make decisions, they need them to be based upon reliable measures. Strong assumptions are often made to simplify the risk estimation process and there has to be a trade-off between ease of estimate and accuracy. In this paper, “Is there a gain to explicitly modelling extremes? A risk measurement analysis”, Jean-Christophe Meyfredi of the Edhec Risk and Asset Management Research Centre develops a copula-based approach in order to estimate the Value-at-Risk of portfolios containing financial assets. He proposes a survival copula, the Heavy Right Tail copula, which could solve many difficulties that risk managers currently have to face.