We analyse a stylized model of the world grain market characterized by a small oligopoly of traders with market power on both the supply and demand side. Crops are stochastic and exporting countries can impose export tariffs to protect domestic food prices. Our first result is that export...

In this note we shall discuss a concept that - despite its prominence in both Hume (1739) and Smith (1759), its obvious relevance for social behavior, and its not so infrequent use in colloquial language - has never gained a foothold in economic theory: the concept of empathy. Specifically, we...

When asking for donations, charitable organizations often use suggestions concerning the amount of potential contributions. In our randomized field experiment, opera visitors received solicitation letters asking to support a social youth project organized by the opera house. The three different...

This paper deals with the interplay between economic incentives and social norms in firms. We outline a simple model of team production and provide preliminary results on linear incentive schemes in the presence of a social norm that may cause multiple equilibria. The effect of the social norm...

We analyze a stylized model of the world grain market characterized by a small oligopoly of traders with market power on both the supply and demand side. Crops are stochastic and exporting countries can impose export tariffs to protect domestic food prices. We show that export tariffs are...

We study an investment experiment conducted with a representative sample of German households. Respondents invest in a safe asset and a risky asset whose return is tied to the German stock market. Experimental investments correlate with beliefs about stock market returns and exhibit desirable...

We experimentally examine the effects of price competition in markets for expe-rience goods where sellers can build up reputations for quality. We compare price competition to monopolistic markets and markets where prices are exogenously fixed (somewhere between the endogenous oligopoly and...

We introduce the notion of strategic awareness in experimental games which captures the idea that subjects realize they are playing a game and thus have to form beliefs about others' actions. The concept differs from both, rule understanding and rationality. We then turn to experimental evidence...

In this paper, we present evidence from a large-scale natural experiment in which different fundraising schemes are tested and compared: lead donor, standard linear matching (1:1), and an alternative matching scheme in which the matching amount goes to another project. The lead donor treatment,...

We study an investment experiment conducted with a representative sample of German households. Respondents invest in a safe asset and a risky asset whose return is tied to the German stock market. Experimental investments correlate with beliefs about stock market returns and exhibit desirable...