Copula-based inference for bivariate survival data with left truncation and dependent censoring

N.W. Deresa, I. Van Keilegom and Katrien Antonio

Insurance: Mathematics and Economics, 2022, vol. 107, issue C, 1-21

Abstract: When pricing life annuity or insurance products issued to multiple lives, actuaries require a model for the survival of coupled lifetimes. For reasons of simplicity these multiple life premiums are often calculated under the assumption of independent lifetimes. In some circumstances this assumption is not realistic, and a number of correction methods based on bivariate survival data have been proposed in the actuarial literature. However, when we only observe the first occurring event time, the applicability of the models suggested for bivariate survival data turns out to be limited. The aim of this paper is to propose a copula-based analysis for bivariate survival data subject to left truncation and dependent censoring when only the first event time is observed. Our method is based on parametric marginals and parametric copulas. For this model, we show that the association between the survival and dependent censoring time is identifiable from the distribution of the observed data. The proposed model is estimated using maximum likelihood, which simultaneously estimates the marginal and dependency parameters. We also develop a goodness-of-fit test approach to examine the validity of the fitted copula model. Finally, our approach is illustrated on data from a large Canadian life insurance company. We hereby price joint and last-survivor annuities from data subject to left-truncation, administrative as well as dependent censoring.

Keywords: Administrative censoring; Association; Bivariate modeling; Copula; Dependent censoring; Left truncation; Life annuity pricing; Multiple life contingent risks (search for similar items in EconPapers)
JEL-codes: C41 G22 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0167668722000841
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:insuma:v:107:y:2022:i:c:p:1-21

DOI: 10.1016/j.insmatheco.2022.07.011

Access Statistics for this article

Insurance: Mathematics and Economics is currently edited by R. Kaas, Hansjoerg Albrecher, M. J. Goovaerts and E. S. W. Shiu

More articles in Insurance: Mathematics and Economics from Elsevier
Bibliographic data for series maintained by Catherine Liu ().