In a model where patients face budget constraints that make some treatments unaffordable, we ask which treatments should be covered by universal basic insurance and which by private voluntary insurance. We argue that both cost effectiveness and prevalence are important if the government wants to...

Major bubble episodes are rare events. In this paper, we examine what factors might cause some asset price bubbles to become very large. We recreate, in a laboratory setting, some of the specific institutional features investors in the South Sea Company faced in 1720. Several factors have been...

This paper introduces a tractable model of health insurance with both moral hazard and adverse selection. We show that government sponsored universal basic insurance should cover treatments with the biggest adverse selection problems. Treatments not covered by basic insurance can be covered on...

Competition has been modelled in economic literature in a number of ways. What do these different parameterizations of competition have in common? For instance, it turns out that it is not always the case that a rise in competition reduces price cost margins, industry wide profits or...

This Paper presents the results of an experimental study on unemployment benefit sanctions. The experimental set-up allows us to distinguish between the effects of benefit sanctions once they are imposed (the ex post effect) and the effects that discourage the unemployed from risking benefit...

In this Paper we provide experimental evidence indicating that incentive contracts may cause a strong crowding out of voluntary cooperation. This crowding-out effect constitutes costs of incentive provision that have been largely neglected by economists. In our experiments the crowding-out...

We report experimental results on exclusive dealing inspired by the literature on "naked exclusion.'' Our key findings are: First, exclusion of a more efficient entrant is a widespread phenomenon in lab markets. Second, allowing incumbents to discriminate between buyers increases exclusion rates...