Economists who use survey or administrative data for inferences regarding a population may want to combine information obtained from two or more samples drawn from the population. This is the case if there is no single sample that contains all relevant variables. A special case occurs if...

The author considers a class of models that generalizes the popular mixed proportional hazard model for duration data: the generalized accelerated failure-time model. He shows that the generalized accelerated failure-time model is nonparametrically identified (up to a normalization). He then...

We specify and estimate an equilibrium search model with between-market heterogeneity in the productivity levels. The model allows for two types of unemployment: unemployment due to search frictions and unemployment due to wage floors. Wage floors may exist, because of large unemployment...

We propose a two-stage instrumental variable estimator that is consistent if there is a selective compliance in the treatment group of a randomized experiment and the outcome variable is a censored duration The estimator assumes full compliance in the control group We use the estimator to...

Discrete choice models are usually derived from the assumption of random utility maximization We consider the reverse problem whether choice probablities are consistent with maximization of random utilities This leads to tests that consider the variation in these choice probabilities with the...

In this Paper we define and estimate measures of labour market frictions using data on job durations. We compare different estimation methods and different types of data. We propose and apply an unconditional inference method that can be applied to aggregate duration data. It does not require...

We analyze the impact of unemployment benefits and minimum wages using an equilibrium search model which allows for dispersion of benefits and productivity levels, job-to-job transitions, and structural and frictional unemployment. The estimation method uses readily available aggregate data on...

On the basis of the baseline data collected for the evaluation of the Bolivian Social Investment Fund (SIF) this paper assesses (1) the benefit incidence of the SIF and (2) the quality of the evaluation design. We find that the benefits in education are most equally distributed over the...

This paper analyzes the determinants of lay-offs, job-to-job movements and total separations with a unique data set that combines information on individual firms and their workers. We are in particular interested in whether the lay-off policy of firms can explain the relatively high level of...