Fungibility of money is a central assumption in the theory of consumer choice: any unit of money is substitutable for another. This implies that the composition of income or wealth is irrelevant for consumption. We find in a field experiment that even in a simple, incentivized setup many...

Recent experimental studies analyze the behavior of physicians towards patients and nd that physicians care for their own pro t as well as patient bene t. In this paper, we extend the experimental analysis of the physician decision problem by adding a third party representing the health...

We conduct a field experiment on direct and indirect transfer mechanisms. It shows that people are willing to donate significantly more if the donation is indirect, i.e., it is tied to the purchase of a good with a price premium, rather than made directly. This points to an...

We conduct a field experiment on direct and indirect transfer mechanisms. It shows that people are willing to donate significantly more if the donation is indirect, i.e., it is tied to the purchase of a good with a price premium, rather than made directly. This points to an...

We run a large-scale natural field experiment to evaluate alternative strategies to enforce compliance with the law. The experiment varies the text of mailings sent to potential evaders of TV license fees. We find a strong alert effect of mailings, leading to a substantial increase in...

This paper studies ethnic discrimination in Germany’s labour market with a correspondence test. To each of 528 advertisements for student internships we send two similar applications, one with a Turkish-sounding and one with a German-sounding name. A German name raises the average probability...

In this paper we make use of a unique dataset collected in the central train station of Kiel, Germany. A group ticket is used by individual proposers who search for co-travelers to share the ride with shortly before the train departure. The bargaining behavior resembles the Ultimatum game to the...

We run a large-scale natural field experiment to evaluate alternative strategies to enforce compliance with the law. The experiment varies the text of mailings sent to potential evaders of TV license fees. We find a strong alert effect of mailings, leading to a substantial increase in...

In a large natural field experiment, we explore the effect of providing donors with the opportunity to choose the target country for their donations. We find that only a small fraction of donors use the option, which might reflect a reluctance to consider tradeoffs when those concern important,...