Explanations of technological diffusion focus on information being spread by epidemic processes, on profit heterogeneity, or oligopolistic competition. The model in this paper integrates the epidemic and the heterogeneity-based approaches. Predictions are tested on Norwegian data concerning the...

Sample attrition is a potential source of selection bias in experimental, as well as non-experimental programme evaluation. For labour market outcomes, such as employment status and earnings, missing data problems caused by attrition can be circumvented by the collection of follow-up data from...

Sickness incidence and recovery are likely to be affected not only by characteristics of individual workers, but also by the conditions under which they work. Large register data bases have been available for researchers in several countries for some years now, allowing detailed research on how...

This paper discusses individual agents' incentives to take precautions to prevent accidents when the prevention technology facing the agents is changed due to regulation. It is shown that private prevention activities vary greatly with different attitudes towards risk. This is a great potential...

We show that social disability insurance may better society-wide welfare even when there is a perfect private market for similar insurance. In essence, the public system complements the private. The latter cover risks when personal characteristics are known, whereas the first mitigates effects...

In a large representative sample of young Norwegian workers, we estimate gross transitions to unemployment, education, and other exits in a multinomial logit. In line with received literature, we find that individuals with high education, experience, and income have significantly lower...