Multivariate Collective Risk Model: Dependent Claim Numbers and Panjer’s Recursion

In this paper, we discuss a generalization of the collective risk model and of Panjer’s recursion. The model we consider consists of several business lines with dependent claim numbers. The distributions of the claim numbers are assumed to be Poisson mixture distributions. We let the claim causes ha...

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Main Authors: Cordelia Rudolph, Uwe Schmock
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Risks
Subjects:
Online Access:https://www.mdpi.com/2227-9091/8/2/43
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author Cordelia Rudolph
Uwe Schmock
author_facet Cordelia Rudolph
Uwe Schmock
author_sort Cordelia Rudolph
collection DOAJ
description In this paper, we discuss a generalization of the collective risk model and of Panjer’s recursion. The model we consider consists of several business lines with dependent claim numbers. The distributions of the claim numbers are assumed to be Poisson mixture distributions. We let the claim causes have certain dependence structures and prove that Panjer’s recursion is also applicable by finding an appropriate equivalent representation of the claim numbers. These dependence structures are of a stochastic non-negative linear nature and may also produce negative correlations between the claim causes. The consideration of risk groups also includes dependence between claim sizes. Compounding the claim causes by common distributions also keeps Panjer’s recursion applicable.
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spelling doaj.art-ffb10a1b560a4c0dac9e6eb84031d7322023-11-19T23:19:43ZengMDPI AGRisks2227-90912020-05-01824310.3390/risks8020043Multivariate Collective Risk Model: Dependent Claim Numbers and Panjer’s RecursionCordelia Rudolph0Uwe Schmock1msg life Austria Ges.m.b.H., Ausstellungsstraße 50, 1020 Vienna, AustriaDepartment of Financial and Actuarial Mathematics, Vienna University of Technology, Wiedner Hauptstraße 8–10/E105-1, 1040 Vienna, AustriaIn this paper, we discuss a generalization of the collective risk model and of Panjer’s recursion. The model we consider consists of several business lines with dependent claim numbers. The distributions of the claim numbers are assumed to be Poisson mixture distributions. We let the claim causes have certain dependence structures and prove that Panjer’s recursion is also applicable by finding an appropriate equivalent representation of the claim numbers. These dependence structures are of a stochastic non-negative linear nature and may also produce negative correlations between the claim causes. The consideration of risk groups also includes dependence between claim sizes. Compounding the claim causes by common distributions also keeps Panjer’s recursion applicable.https://www.mdpi.com/2227-9091/8/2/43extended CreditRisk+Poisson mixture distributiondependence modellingcompound distributionPanjer recursion
spellingShingle Cordelia Rudolph
Uwe Schmock
Multivariate Collective Risk Model: Dependent Claim Numbers and Panjer’s Recursion
Risks
extended CreditRisk+
Poisson mixture distribution
dependence modelling
compound distribution
Panjer recursion
title Multivariate Collective Risk Model: Dependent Claim Numbers and Panjer’s Recursion
title_full Multivariate Collective Risk Model: Dependent Claim Numbers and Panjer’s Recursion
title_fullStr Multivariate Collective Risk Model: Dependent Claim Numbers and Panjer’s Recursion
title_full_unstemmed Multivariate Collective Risk Model: Dependent Claim Numbers and Panjer’s Recursion
title_short Multivariate Collective Risk Model: Dependent Claim Numbers and Panjer’s Recursion
title_sort multivariate collective risk model dependent claim numbers and panjer s recursion
topic extended CreditRisk+
Poisson mixture distribution
dependence modelling
compound distribution
Panjer recursion
url https://www.mdpi.com/2227-9091/8/2/43
work_keys_str_mv AT cordeliarudolph multivariatecollectiveriskmodeldependentclaimnumbersandpanjersrecursion
AT uweschmock multivariatecollectiveriskmodeldependentclaimnumbersandpanjersrecursion