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Title:Separability of Duration Dependence and Unobserved Heterogeneity PDF Logo
Authors:Turon, Hélène
Issue Date:2003
Series/Report no.:IZA Discussion paper series 754
Abstract:Mixed proportional hazard models are commonly used to estimate duration dependence and unobserved heterogeneity in unemployment exit rates. Some strong assumptions are made in this framework, i.e. that the various influences on the individual unemployment exit rate are separable. The model we use in this paper allows for both the individual duration dependence pattern and the inflow composition to exhibit cyclical variations, thereby relaxing two of the three separability assumptions. The aim of this paper is to assess the validity of the third separability assumption, namely that the duration dependence pattern is the same for all individuals.
Subjects:unemployment outflow rate
regional and age group data
mixed proportional hazard
JEL:J64
Document Type:Working Paper
Appears in Collections:IZA Discussion Papers, Forschungsinstitut zur Zukunft der Arbeit (IZA)

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