A major issue in the analysis of unemployment durations concerns distinguishing genuine duration dependence of the exit rate out of unemployment from unobserved heterogeneity. The authors present a method for the nonparametric estimation of both phenomena, designed to be applicable to...

Generally, it is acknowledged that changing the job-offer arrival rate has two opposite effects on unemployment duration. For a basic job search model, sufficient conditions on the wage-offer distribution have been derived, ensuring that one of the effects dominates. However, these are not...