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Title:Identification of structural duration dependence and unobserved heterogeneity with time-varying covariates PDF Logo
Authors:Brinch, Christian
Issue Date:2000
Series/Report no.:Memorandum, Department of Economics, University of Oslo 2000,20
Abstract:Known results on the identification of structural duration dependence in the presence of unobserved heterogeneity depend crucially on the proportional hazards assumption. Here, I show that variation in covariates over time, combined with variation across observations, is sufficient to ensure identification without the proportional hazards assumption. The required variation over time is minimal.
JEL:C41
Document Type:Working Paper
Appears in Collections:Memorandum, Department of Economics, University of Oslo

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