Modeling the Conditional Dependence between Discrete and Continuous Random Variables with Applications in Insurance

We jointly model amount of expenditure for outpatient visits and number of outpatient visits by considering both dependence and simultaneity by proposing a bivariate structural model that describes both variables, specified in terms of their conditional distributions. For that reason, we assume that...

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Main Authors: Emilio Gómez-Déniz, Enrique Calderín-Ojeda
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/1/45
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author Emilio Gómez-Déniz
Enrique Calderín-Ojeda
author_facet Emilio Gómez-Déniz
Enrique Calderín-Ojeda
author_sort Emilio Gómez-Déniz
collection DOAJ
description We jointly model amount of expenditure for outpatient visits and number of outpatient visits by considering both dependence and simultaneity by proposing a bivariate structural model that describes both variables, specified in terms of their conditional distributions. For that reason, we assume that the conditional expectation of expenditure for outpatient visits with respect to the number of outpatient visits and also, the number of outpatient visits expectation with respect to the expenditure for outpatient visits is related by taking a linear relationship for these conditional expectations. Furthermore, one of the conditional distributions obtained in our study is used to derive Bayesian premiums which take into account both the number of claims and the size of the correspondent claims. Our proposal is illustrated with a numerical example based on data of health care use taken from Medical Expenditure Panel Survey (MEPS), conducted by the U.S. Agency of Health Research and Quality.
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spelling doaj.art-9947ac445fa84d1680e08a125bb026f12023-11-21T02:46:44ZengMDPI AGMathematics2227-73902020-12-01914510.3390/math9010045Modeling the Conditional Dependence between Discrete and Continuous Random Variables with Applications in InsuranceEmilio Gómez-Déniz0Enrique Calderín-Ojeda1Department of Quantitative Methods and TIDES Institute, Campus de Tafira s/n, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, SpainCentre for Actuarial Studies, Department of Economics, The University of Melbourne, 3010 Victoria, AustraliaWe jointly model amount of expenditure for outpatient visits and number of outpatient visits by considering both dependence and simultaneity by proposing a bivariate structural model that describes both variables, specified in terms of their conditional distributions. For that reason, we assume that the conditional expectation of expenditure for outpatient visits with respect to the number of outpatient visits and also, the number of outpatient visits expectation with respect to the expenditure for outpatient visits is related by taking a linear relationship for these conditional expectations. Furthermore, one of the conditional distributions obtained in our study is used to derive Bayesian premiums which take into account both the number of claims and the size of the correspondent claims. Our proposal is illustrated with a numerical example based on data of health care use taken from Medical Expenditure Panel Survey (MEPS), conducted by the U.S. Agency of Health Research and Quality.https://www.mdpi.com/2227-7390/9/1/45bivariate distributionsconditional distributionscredibilitypremium
spellingShingle Emilio Gómez-Déniz
Enrique Calderín-Ojeda
Modeling the Conditional Dependence between Discrete and Continuous Random Variables with Applications in Insurance
Mathematics
bivariate distributions
conditional distributions
credibility
premium
title Modeling the Conditional Dependence between Discrete and Continuous Random Variables with Applications in Insurance
title_full Modeling the Conditional Dependence between Discrete and Continuous Random Variables with Applications in Insurance
title_fullStr Modeling the Conditional Dependence between Discrete and Continuous Random Variables with Applications in Insurance
title_full_unstemmed Modeling the Conditional Dependence between Discrete and Continuous Random Variables with Applications in Insurance
title_short Modeling the Conditional Dependence between Discrete and Continuous Random Variables with Applications in Insurance
title_sort modeling the conditional dependence between discrete and continuous random variables with applications in insurance
topic bivariate distributions
conditional distributions
credibility
premium
url https://www.mdpi.com/2227-7390/9/1/45
work_keys_str_mv AT emiliogomezdeniz modelingtheconditionaldependencebetweendiscreteandcontinuousrandomvariableswithapplicationsininsurance
AT enriquecalderinojeda modelingtheconditionaldependencebetweendiscreteandcontinuousrandomvariableswithapplicationsininsurance