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UTL Repository
Master thesis . 2019
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Heterogeneidade nas taxas de mortalidade : um estudo comparado

Authors: Guerreiro, Bruno Miguel Couto;

Heterogeneidade nas taxas de mortalidade : um estudo comparado

Abstract

No domínio do atuariado, como em muitos outros, o aperfeiçoamento dos modelos utilizados é de extrema importância, para que a sua aderência à realidade seja cada vez mais efetiva. É desta preocupação que surge a necessidade de estudar a heterogeneidade que por vezes existe na mortalidade das populações, e de qual o seu comportamento nas diferentes idades. Com o propósito de estudar a heterogeneidade Su e Sherris (2012) aplicam, entre outros, o modelo Markov Aging à população australiana, recorrendo ao conceito de idade fisiológica. Tendo como base este trabalho, o objetivo da presente dissertação consiste no estudo e aplicação do modelo Markov Aging à análise e projeção da heterogeneidade existente nas taxas de mortalidade de cinco populações, escolhendo uma coorte específica. Austrália, Canadá, Japão, Portugal e Suécia são os países selecionados, relativamente aos quais se calculam as idades fisiológicas associadas a determinadas idades reais. Adicionalmente, estuda-se de forma um pouco mais detalhada o caso português, comparando duas coortes distintas, separadas por dez anos. Com isto procura-se inferir se (e como) o comportamento da mortalidade e da heterogeneidade evoluiu ao longo da década em consideração no nosso país. As conclusões a que se chegou, embora alinhadas com as dos trabalhos de referência, não deixam de ser significativas.

In the Actuarial Science field, as in other fields, the improvement of the models used is of extreme importance, so that its adherence to reality is increasingly effective. It is from this concern that comes the need to study the heterogeneity existing in the mortality rates of the different populations, and how it actuates at different ages. In order to study heterogeneity Su and Sherris (2012) apply, among others, the Markov Aging model to the Australian population, using the concept of physiological age. Based on this work, the objective of this dissertation is to study and apply the Markov Aging model to the analysis and projection of heterogeneity in mortality rates of five populations, choosing a specific cohort. Australia, Canada, Japan, Portugal and Sweden are the selected countries for which the physiological ages associated with certain real ages are calculated. Additionally, the Portuguese case is studied in a somewhat more detailed way, comparing two distinct cohorts, separated by ten years. With this, we try to infer if (and how) the behavior of mortality and heterogeneity has changed in our country over the decade under consideration. The conclusions of the study, although in line with those of the reference papers, are significant and enlightening.

info:eu-repo/semantics/publishedVersion

Mestrado em Actuarial Science

Country
Portugal
Keywords

Markov Aging, Homogeneidade, Heterogeneidade, Homogeneity, Heterogeneity, Idade Fisiológica, Physiological Age

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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