We study experimentally how taxpayers choose between two taxregimes to fund a public good. The first-best tax regime imposes ageneral, distortion-free income tax. However, this tax cannot be enforced.The second-best alternative supplements the income tax by a specificcommodity tax. This tax...

To explain why pre-play communication increases cooperation in games,one refers to a) strategic causes such as efficient communication or reputationeffects, and b) changes in the utilities due to social processes. Hithertoexperimental support for both explanations is mixed and confounded....

A firm with stochastic demand can rely on hired hands when demand is low and rent additionallabour when demand is higher. For high demand this implies the co-employmentof hired hands, paid directly by the firm, and of rented hands who are paid by a rentalagency. This may cause severe problems if...

Bidding challenges learning theories since experiences with the same bid vary stochastically:the same choice can result in either a gain or a loss. In such an environment thequestion arises how the nearly universally documented phenomenon of loss aversion affectsthe adaptive dynamics. We analyze...