Suchergebnisse

Ideas of a coordinated social dimension to integration have recently been given greater weight. Examines to what extent 'ex-ante' harmonisation is desirable or necessary. Then focuses on 'ex-post' harmonisation resulting from tax harmonisation which will eventually follow from the Single Market's completion. (SJK)

Extensions of the Cox proportional hazards model for survival data are studied where allowance is made for unobserved heterogeneity and for correlation between the life times of several individuals. The extended models are frailty models inspired by Yashin et al. (1995). Estimation is carried out using the EM algorithm. Inference is discussed and potential applications are outlined, in particular to statistical research in human genetics using twin data or adoption data, aimed at separating the effects of genetic and environmental factors on mortality.