Expected Shortfall: a natural coherent alternative to Value at Risk
classification
❄️ cond-mat.stat-mech
q-fin.RM
keywords
alternativeexpectednaturalriskshortfallappropriatearisesaverage
read the original abstract
We discuss the coherence properties of Expected Shortfall (ES) as a financial risk measure. This statistic arises in a natural way from the estimation of the "average of the 100p % worst losses" in a sample of returns to a portfolio. Here p is some fixed confidence level. We also compare several alternative representations of ES which turn out to be more appropriate for certain purposes.
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