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Adjusted Expected Shortfall
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DOI：10.1016/j.jbankfin.2021.106297.png)
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Abstract
En 中文
We introduce and study the main properties of a class of convex risk measures that refine Expected Shortfall by simultaneously controlling the expected losses associated with different portions of the tail distribution. The corresponding adjusted Expected Shortfalls quantify risk as the minimum amount of capital that has to be raised and injected into a financial position X to ensure that Expected Shortfall ESp (X) does not exceed a pre-specified threshold g(p) for every probability level p is an element of [0, 1]. Through the choice of the benchmark risk profile gone can tailor the risk assessment to the specific application of interest. We devote special attention to the study of risk profiles defined by the Expected Shortfall of a benchmark random loss, in which case our risk measures are intimately linked to second-order stochastic dominance. (C) 2021ElsevierB.V. Allrightsreserved.
Keywords:
LAW-INVARIANT
STOCHASTIC-DOMINANCE
RISK
ROBUSTNESS
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