Author:
Wang Ruodu,Ziegel Johanna F.
Abstract
AbstractRisk measures such as expected shortfall (ES) and value-at-risk (VaR) have been prominent in banking regulation and financial risk management. Motivated by practical considerations in the assessment and management of risks, including tractability, scenario relevance and robustness, we consider theoretical properties of scenario-based risk evaluation. We establish axiomatic characterisations of scenario-based risk measures that are comonotonic-additive or coherent, and we obtain a novel ES-based representation result. We propose several novel scenario-based risk measures, including various versions of Max-ES and Max-VaR, and study their properties. The theory is illustrated with financial data examples.
Publisher
Springer Science and Business Media LLC
Subject
Statistics, Probability and Uncertainty,Finance,Statistics and Probability
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