We introduce the experimental vendetta game. Two groups of four players each interact over ten identical rounds. In each round each player decides whether or not to reduce the payoff of each member of the other group, at an own cost. Reducing payoffs entails no material benefit for either the...

Recent papers hypothesize that an asymmetry in regret motivates aggressive bidding in laboratory first-price auctions. Subjects emphasize potential earnings foregone from being outbid. Proposed motivators of this asymmetry include the one-to-one relationship in the auction between winning and...

An important branch of economic research on emotions has used power-to-take game experiments to study the impact of negative emotions, such as anger, irritation and contempt, on the decision to punish. We investigate experimentally to what extent the findings of this literature are driven by the...

We analyze lottery-choice data in a way that separately estimates the effects of risk aversion and complexity aversion, and allows both both of these to vary between individuals, and also to change with experience. The data is from an experiment in which 80 subjects engage in a sequence of 54...

Is the rapid growth of experimental research in economics evidence of a new scientific spirit at work or merely fresh evidence of a misplaced desire to ape the methods of natural sciences? It is often argued that economic experiments are artificial in some sense which tends to render the results...

A relevance, distinctiveness and plausibility (RDP) analysis is a conceptual framework that can be used to identify when potential confounds are a problem for interpreting experimental results. We illustrate this analysis using the creation or enhancement of natural group identity by the means...

We explore network effects on generosity for different network dimensions. To this end we elicit multiple network dimensions (friendship, social support, economic exchange, etc.) in a rural village in the Southern hemisphere and measure generosity with a sequence of dictator games conducted in...

Game theory predicts that players make strategic commitments that may appear counter-intuitive. We conducted an experiment to see if people make a counter-intuitive but strategically optimal decision to avoid information. The experiment is based on a sequential Nash demand game in which a...