Regression analysis for discrete event history or failure time data

The paper deals with discrete-time regression models to analyze multistate—multiepisode models for event history data or failure time data collected in follow-up studies, retrospective studies, or longitudinal panels. The models are applicable if the events are not dated exactly but only a time interval is recorded. The models include individual specific parameters to account for unobserved heterogeneity. The explantory variables may be time-varying and random with distributions depending on the observed history of the process. Different estimation procedures are considered: Estimation of structural as well as individual specific parameters by maximization of a joint likelihood function, estimation of the structural parameters by maximization of a conditional likelihood function conditioning on a set of sufficient statistics for the individual specific parameters, and estimation of the structural parameters by maximization of a marginal likelihood function assuming that the individual specific parameters follow a distribution. The advantages and limitations of the different approaches are discussed

A Bayesian Approach to Model Interdependent Event Histories by Graphical Models

Event history analysis, Interdependent marked point processes, Frailty models, Semi-parametric Bayesian models,

Examining geographic and occupational mobility: A loglinear modelling approach

This article attempts to develop a set of loglinear models that synthesise gravity models of interregional mobility and loglinear models of occupational mobility. The development of the model is progressed from a simple two-way mobility table analysis to a three-way analysis that controls for one aspect of mobility while investigating another and eventually to a four-way analysis that simultaneously assesses the joint effect of occupational and geographic mobility. An example based on data from the 1970 United States census demonstrates that the models can effectively capture the joint effect of occupational and geographic mobility. The results show that interregional movers may not necessarily have strong occupational persistence. With regard to female dominated clerical occupations, interregional migration is positively associated with upward occupational mobility, and the propensity for upward mobility was consistently greater for males than for females. Copyright (c) 2006 the author(s). Journal compilation (c) 2006 RSAI.