We test the importance of social norms for market interactions associated with negative real-world externalities in a large-scale experiment with a heterogeneous population sample from Germany. The majority of experimental participants refuses to trade, thus behaving in a moral way. Our data...

We analyze the problem of a buyer who chooses a supplier for a long-term relationship via an auction. The buyer lacks commitment to not renegotiate the terms of the contract in the long run. Thus, suppliers are cautious about the information revealed during the auction. We show theoretically and...

Durch die Gasspeicherregelungen soll die Versorgungssicherheit im Winter erhöht werden. Ausschreibungen und direkte Beschaffung durch den Marktgebietsverantwortlichen sollen die Befüllung der Gasspeicher sicherstellen. Beide Instrumente können zu einer Verdrängung von anderen Speichermengen...

The usual analysis of bidding in first-price auctions assumes that bidders know the distribution of valuations. We analyze first-price auctions in which bidders do not know the precise distribution of their competitors' valuations, but only the mean of the distribution. We propose a novel...