Dual representations for quasiconvex compositions with applications to systemic risk measures
Fuente:
arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2021
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| _version_ | 1866908634284294144 |
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| author | Ararat, Çağın Aygün, Mücahit |
| author_facet | Ararat, Çağın Aygün, Mücahit |
| contents | Motivated by the problem of finding dual representations for quasiconvex systemic risk measures in financial mathematics, we study quasiconvex compositions in an abstract infinite-dimensional setting. We calculate an explicit formula for the penalty function of the composition in terms of the penalty functions of the ingredient functions. The proof makes use of a nonstandard minimax inequality (rather than equality as in the standard case) that is available in the literature. In the second part of the paper, we apply our results in concrete probabilistic settings for systemic risk measures, in particular, in the context of Eisenberg-Noe clearing model. We also provide novel economic interpretations of the dual representations in these settings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2108_12910 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Dual representations for quasiconvex compositions with applications to systemic risk measures Ararat, Çağın Aygün, Mücahit Risk Management Optimization and Control 46N10, 91G45, 46A20, 52A01 Motivated by the problem of finding dual representations for quasiconvex systemic risk measures in financial mathematics, we study quasiconvex compositions in an abstract infinite-dimensional setting. We calculate an explicit formula for the penalty function of the composition in terms of the penalty functions of the ingredient functions. The proof makes use of a nonstandard minimax inequality (rather than equality as in the standard case) that is available in the literature. In the second part of the paper, we apply our results in concrete probabilistic settings for systemic risk measures, in particular, in the context of Eisenberg-Noe clearing model. We also provide novel economic interpretations of the dual representations in these settings. |
| title | Dual representations for quasiconvex compositions with applications to systemic risk measures |
| topic | Risk Management Optimization and Control 46N10, 91G45, 46A20, 52A01 |
| url | https://arxiv.org/abs/2108.12910 |