Being still in its early stages, operational risk modeling has, so far, mainly been concentrated on the marginal distributions of frequencies and severities within the context of the Loss Distribution Approach (LDA). A realistic quantitative model, however, should be capable of modeling the...

This article addresses the problem of portfolio construction in the context of efficient hedge fund investments replication. We propose a modification to the standard à la Sharpe ‘style analysis' where we augment the objective function with a penalty proportional to the sum of the absolute...