An auction is externality-robust if unilateral deviations from equilibrium leave the other bidders’ payoffs unaffected. The equilibrium and its outcome will then persist if certain types of externalities arise between bidders. One example are externalities due to spiteful preferences, which...

An auction is externality-robust if unilateral deviations from equilibrium leave the other bidders’ payoffs unaffected. The equilibrium and its outcome will then persist if certain types of externalities arise between bidders. One example are externalities due to spiteful preferences, which...

This discussion paper resulted in an article in 'Games and Economic Behavior' (2013). Volume 77, issue 1, pages 41-60.<P> Numerous gift exchange experiments have found a positive relationship between employers' wage offers and workers' effort levels. In (almost) all these experiments the employer...</p>

Numerous gift exchange experiments have found a positive relationship between employers' wage offers and workers' effort levels. In (almost) all these experiments the employer both owns and controls the firm. Yet in reality many firms are characterized by the separation of ownership and control....

We investigate expectation formation in a controlled experimental en- vironment. Subjects are asked to predict the price in a standard asset pricing model. They do not have knowledge of the underlying market equilibrium equa- tions, but they know all past realized prices and their own...

We compare experimentally the revealed distributional preferences of individuals and teams in allocation tasks. We find that teams are significantly more benevolent than individuals in the domain of disadvantageous inequality while the benevolence in the domain of advantageous inequality is...

We investigate expectation formation in a controlled experimental en-vironment. Subjects are asked to predict the price in a standard asset pricingmodel. They do not have knowledge of the underlying market equilibrium equa-tions, but they know all past realized prices and their own predictions....

Experimental studies on bidding in auctions have so far relied on individual bidders, even though teams are often involved in real auctions. We examine the bidding behaviour of individuals and teams. Our experimental results show that teams stay longer in an (ascending sealed-bid English)...

Experimental studies on bidding in auctions have so far relied on individual bidders, even though teams are often involved in real auctions. We examine the bidding behaviour of individuals and teams. Our experimental results show that teams stay longer in an (ascending sealed-bid English)...

Auctions often involve goods exhibiting a common knowledge ex-post risk that is independent of buyers' private values or their signals regarding common value components. Eso and White (2004) showed theoretically that ex-post risk leads to precautionary bidding for DARA bidders: Agents reduce...