dc.contributor.author | Arias-Serna M.A | |
dc.contributor.author | Caro-Lopera F.J | |
dc.contributor.author | Loubes J.-M. | |
dc.date.accessioned | 2022-09-14T14:34:00Z | |
dc.date.available | 2022-09-14T14:34:00Z | |
dc.date.created | 2021 | |
dc.identifier.issn | 14651211 | |
dc.identifier.uri | http://hdl.handle.net/11407/7554 | |
dc.description | This paper develops a method for estimating value-at-risk and conditional value-at-risk when the underlying risk factors follow a beta distribution in a univariate and a matrix-variate setting. For this purpose, we connect the theory of the Gaussian hypergeometric function of matrix argument and integration over positive definite matrixes. For certain choices of the shape parameters, a and b, analytical expressions of the risk measures are developed. More generally, a numerical solution for the risk measures for any parameterization of beta-distributed loss variables is presented. The proposed risk measures are finally used for quantifying the potential risk of economic loss in credit risk. © 2021 Infopro Digital Risk (IP) Limited. | eng |
dc.language.iso | eng | |
dc.publisher | Infopro digital | |
dc.relation.isversionof | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107435358&doi=10.21314%2fJOR.2021.003&partnerID=40&md5=eb87d780c78b49ca91526073f2c86679 | |
dc.source | Journal of Risk | |
dc.title | Risk measures: A generalization from the univariate to the matrix-variate | |
dc.type | Article | |
dc.rights.accessrights | info:eu-repo/semantics/restrictedAccess | |
dc.publisher.program | Ciencias Básicas | |
dc.publisher.program | Ingeniería Financiera | |
dc.type.spa | Artículo | |
dc.identifier.doi | 10.21314/JOR.2021.003 | |
dc.subject.keyword | Beta distribution | eng |
dc.subject.keyword | Gaussian hypergeometric function of matrix argu-ment | eng |
dc.subject.keyword | Positive definite matrixes | eng |
dc.subject.keyword | Risk measures | eng |
dc.relation.citationvolume | 23 | |
dc.relation.citationissue | 4 | |
dc.relation.citationstartpage | 1 | |
dc.relation.citationendpage | 20 | |
dc.publisher.faculty | Facultad de Ingenierías | |
dc.publisher.faculty | Facultad de Ciencias Básicas | |
dc.affiliation | Arias-Serna, M.A., Faculty of Engineering, University of Medellín, Cra. 87, Medellín, 30-65, Colombia | |
dc.affiliation | Caro-Lopera, F.J., Faculty of Basic Sciences, University of Medellín, Cra. 87, Medellín, 30-65, Colombia | |
dc.affiliation | Loubes, J.-M., Toulouse Mathematics Institute, University Paul Sabatier, Bat 1R1, Bureau 109, Toulouse, 31062, France | |
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dc.type.coar | http://purl.org/coar/resource_type/c_6501 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | |
dc.type.driver | info:eu-repo/semantics/article | |
dc.identifier.reponame | reponame:Repositorio Institucional Universidad de Medellín | |
dc.identifier.repourl | repourl:https://repository.udem.edu.co/ | |
dc.identifier.instname | instname:Universidad de Medellín | |