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Contribution Details

Type Journal Article
Scope Discipline-based scholarship
Title Risk measures based on benchmark loss distributions
Organization Unit
Authors
  • Valeria Bignozzi
  • Matteo Burzoni
  • Cosimo Munari
Item Subtype Original Work
Refereed Yes
Status Published in final form
Language
  • English
Journal Title Journal of Risk and Insurance
Publisher Wiley-Blackwell Publishing, Inc.
Geographical Reach international
ISSN 0022-4367
Volume 87
Number 2
Page Range 437 - 475
Date 2020
Abstract Text We introduce a class of quantile‐based risk measures that generalize Value at Risk (VaR) and, likewise Expected Shortfall (ES), take into account both the frequency and the severity of losses. Under VaR a single confidence level is assigned regardless of the size of potential losses. We allow for a range of confidence levels that depend on the loss magnitude. The key ingredient is a benchmark loss distribution (BLD), that is, a function that associates to each potential loss a maximal acceptable probability of occurrence. The corresponding risk measure, called Loss VaR (LVaR), determines the minimal capital injection that is required to align the loss distribution of a risky position to the target BLD. By design, one has full flexibility in the choice of the BLD profile and, therefore, in the range of relevant quantiles. Special attention is given to piecewise constant functions and to tail distributions of benchmark random losses, in which case the acceptability condition imposed by the BLD boils down to first‐order stochastic dominance. We investigate the main theoretical properties of LVaR with a focus on their comparison with VaR and ES and discuss applications to capital adequacy, portfolio risk management, and catastrophic risk.
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Digital Object Identifier 10.1111/jori.12285
Other Identification Number merlin-id:17798
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