Showing 1 - 10 of 698
When the uni-variate risk measure analysis is generalized into the multi-variate setting, many complex theoretical and … applied problems arise, and therefore the mathematical models used for risk quantification usually present model risk. As a … task, we propose a novel multi-variate risk measure, based on the notion of the Wasserstein barycenter. The proposed …
Persistent link: https://www.econbiz.de/10013555458
Evaluating risk measures, premiums, and capital allocation based on dependent multi-losses is a notoriously difficult … by a heavy-tailed background risk. A particular attention is given to the distortion and weighted risk measures and … allocations, as well as their special cases such as the conditional layer expectation, tail value at risk, and the truncated tail …
Persistent link: https://www.econbiz.de/10009754682
This paper proposes a new method to introduce coherent risk measures for risks with infinite expectation, such as those … characterized by some Pareto distributions. Extensions of the conditional value at risk, the weighted conditional value at risk and …
Persistent link: https://www.econbiz.de/10010489103
measures of risk. Furthermore, Qα(X ; p) is the optimal value in a certain minimization problem, the minimizers in which are … problems. In finance, Q0(X;p) and Q1(X ; p) are known as the value at risk (VaR) and the conditional value at risk (CVaR). The … sensitivity to risk. The problems of the effective computation of the bounds are considered. Various other related results are …
Persistent link: https://www.econbiz.de/10010482350
This article reviews two leading measures of financial risk and an emerging alternative. Embraced by the Basel accords …, value-at-risk and expected shortfall are the leading measures of financial risk. Expectiles offset the weaknesses of value-at-risk … (VaR) and expected shortfall. Indeed, expectiles are the only elicitable law-invariant coherent risk measures. After …
Persistent link: https://www.econbiz.de/10011867427
The aim of this paper is to provide several examples of convex risk measures necessary for the application of the … general framework for portfolio theory of Maier-Paape and Zhu (2018), presented in Part I of this series. As an alternative to … classical portfolio risk measures such as the standard deviation, we, in particular, construct risk measures related to the …
Persistent link: https://www.econbiz.de/10011890765
In the present paper, we study quantile risk measures and their domain. Our starting point is that, for a probability … measure Q on the open unit interval and a wide class L Q of random variables, we define the quantile risk measure ϱ Q as the … map that integrates the quantile function of a random variable in L Q with respect to Q . The definition of L Q ensures …
Persistent link: https://www.econbiz.de/10011783578
We prove that the Omega measure, which considers all moments when assessing portfolio performance, is equivalent to the widely used Sharpe ratio under jointly elliptic distributions of returns. Portfolio optimization of the Sharpe ratio is then explored, with an active-set algorithm presented...
Persistent link: https://www.econbiz.de/10011643419
risk measure and expected utility. …
Persistent link: https://www.econbiz.de/10011556539
Risk analysis and management currently have a strong presence in financial institutions, where high performance and … regard, we approach the estimation of the widely-employed portfolio risk metrics value-at-risk (VaR) and conditional value-at-risk … (cVaR) by means of nested Monte Carlo (MC) simulations. We do so by combining theory and software/hardware implementation …
Persistent link: https://www.econbiz.de/10011556579