In a laboratory experiment we study how costly punishment behavior of second and third parties in a social dilemma situation is affected by monitoring costs. Subjects have to pay a fee over and above punishment costs if they wish to condition punishments on previous play, which is equivalent to...

Enforcement agencies issuing warnings are an empirical regularity in the enforcement of laws and regulations, but a challenge to the standard economic theory of public enforcement. A number of recent contributions explain the popularity of warnings as a response to information asymmetries...

Decision-makers commonly avoid information on uncertain social effects of their privately beneficial choices. The dominant theory holds that such "strategic ignorance" is a means to circumvent inner moral conflict while acting self-servingly. In extension of the theory, we hypothesize that time...

Janssen et al. (2011, Experimental Economics, Vol. 14, pp. 547–566) studied an asymmetric, finitely repeated common-pool resource dilemma with free-form communication in which subjects made decisions about investments in an infrastructure, and about extraction from a resource made available by...

Is feedback on trustworthiness necessary for the functioning of economic relationships? In many real-world economic environments, such feedback can at best be acquired through costly monitoring, raising questions of how trust and efficiency can be maintained. In the lab, we conduct a modified...

Many modern organisations employ methods which involve monitoring of employees' actions in order to encourage teamwork in the workplace. While monitoring promotes a transparent working environment, the effects of making monitoring itself transparent may be ambiguous and have received...

The performance of market based environmental regulation is affected by patents and vice versa. This interaction is studied for a new type of innovation where new technologies reduce emissions of a specific pollutant but at the same time cause a new type of damage. A robust finding is that the...