A copula duration model with dependent states and spells

Simon M.S. Lo, Shuolin Shi and Ralf Wilke

Computational Statistics & Data Analysis, 2025, vol. 204, issue C

Abstract: A nested Archimedean copula model for dependent states and spells is introduced and the link to a classical survival model with frailties is established. The model relaxes an important restriction of classical survival models as the distributions of unobservable heterogeneities are permitted to depend on the observable covariates. Its modular structure has practical advantages as the different components can be separately specified and estimation can be done sequentially or separately. This makes the model versatile and adaptable in empirical work. An application to labour market transitions with linked administrative data supports the need for a flexible specification of the dependence structure and the model for the marginal survivals. The conventional Markov Chain Model is shown to give sizeably biased results in the application.

Keywords: Hierarchical copula; Frailty; Pseudo maximum likelihood estimation (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:csdana:v:204:y:2025:i:c:s0167947324001889

DOI: 10.1016/j.csda.2024.108104

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