Dynamic Proportional Reinsurance and Approximations for Ruin Probabilities in the Two-Dimensional Compound Poisson Risk Model

We consider the dynamic proportional reinsurance in a two-dimensional compound Poisson risk model. The optimization in the sense of minimizing the ruin probability which is defined by the sum of subportfolio is being ruined. Via the Hamilton-Jacobi-Bellman approach we find a candidate for the optima...

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Main Authors: Yan Li, Guoxin Liu
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2012/802518
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author Yan Li
Guoxin Liu
author_facet Yan Li
Guoxin Liu
author_sort Yan Li
collection DOAJ
description We consider the dynamic proportional reinsurance in a two-dimensional compound Poisson risk model. The optimization in the sense of minimizing the ruin probability which is defined by the sum of subportfolio is being ruined. Via the Hamilton-Jacobi-Bellman approach we find a candidate for the optimal value function and prove the verification theorem. In addition, we obtain the Lundberg bounds and the Cramér-Lundberg approximation for the ruin probability and show that as the capital tends to infinity, the optimal strategies converge to the asymptotically optimal constant strategies. The asymptotic value can be found by maximizing the adjustment coefficient.
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institution Kabale University
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publishDate 2012-01-01
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series Discrete Dynamics in Nature and Society
spelling doaj-art-7f8a63da992f45cd9df860d7e4c7eac32025-02-03T06:12:46ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2012-01-01201210.1155/2012/802518802518Dynamic Proportional Reinsurance and Approximations for Ruin Probabilities in the Two-Dimensional Compound Poisson Risk ModelYan Li0Guoxin Liu1School of Insurance and Economics, University of International Business and Economics, Beijing 100029, ChinaSchool of Science, Hebei University of Technology, Tianjin 300130, ChinaWe consider the dynamic proportional reinsurance in a two-dimensional compound Poisson risk model. The optimization in the sense of minimizing the ruin probability which is defined by the sum of subportfolio is being ruined. Via the Hamilton-Jacobi-Bellman approach we find a candidate for the optimal value function and prove the verification theorem. In addition, we obtain the Lundberg bounds and the Cramér-Lundberg approximation for the ruin probability and show that as the capital tends to infinity, the optimal strategies converge to the asymptotically optimal constant strategies. The asymptotic value can be found by maximizing the adjustment coefficient.http://dx.doi.org/10.1155/2012/802518
spellingShingle Yan Li
Guoxin Liu
Dynamic Proportional Reinsurance and Approximations for Ruin Probabilities in the Two-Dimensional Compound Poisson Risk Model
Discrete Dynamics in Nature and Society
title Dynamic Proportional Reinsurance and Approximations for Ruin Probabilities in the Two-Dimensional Compound Poisson Risk Model
title_full Dynamic Proportional Reinsurance and Approximations for Ruin Probabilities in the Two-Dimensional Compound Poisson Risk Model
title_fullStr Dynamic Proportional Reinsurance and Approximations for Ruin Probabilities in the Two-Dimensional Compound Poisson Risk Model
title_full_unstemmed Dynamic Proportional Reinsurance and Approximations for Ruin Probabilities in the Two-Dimensional Compound Poisson Risk Model
title_short Dynamic Proportional Reinsurance and Approximations for Ruin Probabilities in the Two-Dimensional Compound Poisson Risk Model
title_sort dynamic proportional reinsurance and approximations for ruin probabilities in the two dimensional compound poisson risk model
url http://dx.doi.org/10.1155/2012/802518
work_keys_str_mv AT yanli dynamicproportionalreinsuranceandapproximationsforruinprobabilitiesinthetwodimensionalcompoundpoissonriskmodel
AT guoxinliu dynamicproportionalreinsuranceandapproximationsforruinprobabilitiesinthetwodimensionalcompoundpoissonriskmodel