In this paper we consider the basic self-selection model for the effects of education, training, unions, and other activities on wages. We show that past models have ignored 'heterogeneity of rewards' to the activity--i.e., differences across individuals in the rate of return to the activity--as...

Sweden has for a long time spent large resources on labor market policies targeted to the unemployed. In the Anglo-Saxon labor economics literature new methods have been developed for the purpose of estimating the effects of such policies. This paper presents the new methods in this field and...

In this paper the effects of unemployment on mental health are analysed. A simple model where both the occurrence of and duration of unemployment are allowed to affect mental health is specified. Panel data are used to control for 'fixed effects', i.e. omitted variables that are constant over...