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Un Modelo Lineal Generalizado Semiparametrico para Analisis de Duracion con Censura

Authors: Orbe Lizundia, Jesús María;

Un Modelo Lineal Generalizado Semiparametrico para Analisis de Duracion con Censura

Abstract

[ES] Aitkin y Clayton (1980) proponen el análisis de modelos de duración mediante modelos lineales generalizados. En este trabajo extendemos esta metodología permitiendo que el efecto de alguna de las variables explicativas pueda no ser especificado. Así, el modelo propuesto es un modelo lineal generalizado semiparamétrico, con una componente paramétrica donde se especifica la forma funcional concreta del efecto de las variables explicativas sobre la duración, y una componente no paramétrica donde recogemos el efecto de una variable explicativa sin asumir forma funcional alguna. Dessarrollaremos el proceso de estimación así como un procedimiento bootstrap para realizar inferencia. Como aplicación, analizaremos con la metodología propuesta el tiempo de supervivencia para una muestra de pacientes diagnosticados de SIDA.

[EN] Aitkin and Clayton (1980) proposed to analyze duration models using generalized linear models. In this work we extend that methodology allowing for some nonspecified covariable effect. The model we propose is a semiparametric generalized linear model, with a parametric component to specify the functional form of the effect of covariables on the duration variable, and a nonparametric component for the effect of some covariable without assuming any functional form. We develop the estimation process and we use a bootstrap procedure to do the inference. An empirical application to analyze the survival time for a sample of AIDS diagnosed patients is also included.

Este trabajo ha sido financiado por los proyectos de investigación UPV 038.321-HA129/99 de la Universidad del País Vasco/Euskal Herriko Unibertsitatea y PB98-0149 de la Dirección General de Enseñanza Superior e Investigación Científica del Ministerio Español de Educacion y Cultura.

Country
Spain
Keywords

duration models, supervivencia, semiparametric estimation, duration models, censorship, bootstrap, survival, semiparametric estimation, modelos de duración, censura, supervivencia, estimación semiparamétrica, censura, survival, estimación semiparamétrica, MATHEMATICAL AND QUANTITATIVE METHODS, C41, C24, censorship, bootstrap, modelos de duración, jel: jel:C41, jel: jel:C24

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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!
0
Average
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