coherent risk measures
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Mathematics ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 175
Author(s):  
Gabriele Canna ◽  
Francesca Centrone ◽  
Emanuela Rosazza Gianin

This paper makes the point on a well known property of capital allocation rules, namely the one called no-undercut. Its desirability in capital allocation stems from some stability game theoretical features that are related to the notion of core, both for finite and infinite games. We review these aspects, by relating them to the properties of the risk measures that are involved in capital allocation problems. We also discuss some problems and possible extensions that arise when we deal with non-coherent risk measures.


2021 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
Engel John C Dela Vega ◽  
Robert J Elliott

<p style='text-indent:20px;'>This paper introduces and represents conditional coherent risk measures as essential suprema of conditional expectations over a convex set of probability measures and as distorted expectations given a concave distortion function. A model is then developed for the bid and ask prices of a European-type asset by a conic formulation. The price process is governed by a modified geometric Brownian motion whose drift and diffusion coefficients depend on a Markov chain. The bid and ask prices of a European-type asset are then characterized using conic quantization.</p>


2020 ◽  
Vol 50 (3) ◽  
pp. 1065-1092
Author(s):  
Jun Cai ◽  
Tiantian Mao

AbstractIn this study, we propose new risk measures from a regulator’s perspective on the regulatory capital requirements. The proposed risk measures possess many desired properties, including monotonicity, translation-invariance, positive homogeneity, subadditivity, nonnegative loading, and stop-loss order preserving. The new risk measures not only generalize the existing, well-known risk measures in the literature, including the Dutch, tail value-at-risk (TVaR), and expectile measures, but also provide new approaches to generate feasible and practical coherent risk measures. As examples of the new risk measures, TVaR-type generalized expectiles are investigated in detail. In particular, we present the dual and Kusuoka representations of the TVaR-type generalized expectiles and discuss their robustness with respect to the Wasserstein distance.


2020 ◽  
Vol 78 (3) ◽  
pp. 597-626
Author(s):  
Tahsin Deniz Aktürk ◽  
Çağın Ararat

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