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Master's Dissertation
DOI
https://doi.org/10.11606/D.45.2008.tde-20230727-113633
Document
Author
Full name
Armando Antonio Mendes
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2008
Supervisor
Title in Portuguese
Estudo comparativo de métodos de avaliação de grandes quantis de perda acumulada no modelo de seguro de Cramér-Lundberg
Keywords in Portuguese
Análise De Risco
Convoluções
Risco
Abstract in Portuguese
A perda acumulada num período, de uma empresa de seguros, pode ser estimada a partir do modelo de Cramér-Lundberg que modela os instantes de chegadas de sinistros e suas severidades. Quando se tenta avaliar os valores extremamente grandes da perda acumulada estimada, surgem problemas técnicos que podem afetar a precisão da avaliação. Tais problemas são identificadas no presente trabalho, e alguns métodos matemáticos aptos a resolver ou amenizar tais problemas são sugeridos. Ao combinar os métodos, pode-se construir diversas abordagens para a estimativa de valores extremos da perda acumulada. A comparação dos resultados da aplicação de algumas destas abordagens para um problema real está feita no presente trabalho.
Title in English
not available
Abstract in English
We consider the collective risk model for aggregate loss of a insurance company or alike. Our concern is with the estimation of high quantiles of the distribution of the aggregate loss when the frequency distribution and the single-loss distribution of the model are inferred from data. We identify the causes for the inaccuracy of estimation and we present a number of methods applicable to enhance the accuracy. Combination of different methods gives rise to different estin:iation approaches. We execute severa! of them for a real data set and compare their results.
 
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Publishing Date
2023-07-27
 
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