We study the moral hazard effects of the drug copayment threshold in Finland using detailed prescription drug purchase data. The analysis reveals that the average drug costs increase discontinuously by 17% at the threshold above which out-of-pocket drug costs decrease substantially. Our results...

Many studies have found that the exit rate from unemployment increases in the vicinity of the exhaustion day of unemployment insurance benefits. The extent to which this "spike" is driven by job search behavior is important for assessing the distortionary effect of unemployment insurance. Card,...

In 2005, displaced workers in Finland with at least three years of work history were given the option to enroll in a Re-employment Program. Participants met with a caseworker at the beginning of their unemployment and drafted an employment plan. In return, they became eligible for higher...

This paper studies how changes in the complexity of the firms' production technologies affect wage differences between and within tasks. In a production process where tasks are complementary, the employer may have an incentive to pay higher wages when using more complex technologies because the...

We perform inference on the effect of a treatment on survival times in studies where the treatment assignment is not randomized and the assignment time is not known in advance. We estimate survival functions on a treated and a control group which are made comparable through matching on observed...

This paper discusses the evaluation problem using observational data when the timing of treatment is an outcome of a stochastic process. We show that the duration framework in discrete time provides a fertile ground for effect evaluations. We suggest easy-to-use nonparametric survival function...

The identification of average causal effects of a treatment in observational studies is typically based either on the unconfoundedness assumption or on the availability of an instrument. When available, instruments may also be used to test for the unconfoundedness assumption (exogeneity of the...