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Erscheinungsjahr: 
2020
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[Journal:] Risks [ISSN:] 2227-9091 [Volume:] 8 [Issue:] 2 [Article No.:] 43 [Publisher:] MDPI [Place:] Basel [Year:] 2020 [Pages:] 1-31
Verlag: 
MDPI, Basel
Zusammenfassung: 
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.
Schlagwörter: 
extended CreditRisk+
Poisson mixture distribution
dependence modelling
compound distribution
Panjer recursion
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