In an experimental 2x2 coordination game with two strict equilibria we observe that, in contrast to equilibrium selection theory (Harsanyi and Selten 1988), only half of the subjects choose the strategy that relates to the payoff- and risk-dominant equilibrium. We propose modified risk dominance...

In an experimental 2x2 coordination game with two strict equilibria we observe that, in contrast to equilibrium selection theory (Harsanyi and Selten 1988), only half of the subjects choose the strategy that relates to the payoff- and risk-dominant equilibrium. We propose modified risk dominance...

[eng] When collective agreements apply to all unionised and non-unionised employees , what is the rationale behind joining a union ? The paper presents an experiment on a two-stage game . In the first stage , the decision to join a union is modelled as a voluntary contribution to a public good ....

Many of real-world public-goods are characterized by a marginal per capita return (MPCR) close to zero and have to be provided by large groups. Up until now, there is almost no evidence on how large groups facing a low MPCR behave in controlled public-good laboratory experiments involving...

The dynamics of behavior observed in standard public-good experiments can be explained by imperfect conditional cooperation combined with social learning (Fischbacher and Gächter, 2010). But it is unclear what determines first-round contributions. We argue that first-round contributions depend...

In this paper, we investigate in a controlled laboratory experiment physician behavior in the case of payment heterogeneity. In the experiment, each physician provides medical care to patients whose treatments are paid for either under fee-for-service (FFS) or capitation (CAP). We observe that...

In a laboratory experiment, we investigate behavior in a principal–agent situation with moral hazard. We evaluate the predictive success of two theories. One is the standard agency theory, which assumes that the agent will accept any contract offer that satisfies his participation...

In a series of experiments, we compare a situation where the same group of four subjects plays 25 repetitions of a public good game (partners condition) to a situation where subjects play this game in changing group formations over 25 periods (strangers condition). We observe that, on aggregate...

We compare a partners condition, where the same small group of subjects plays a repeated public good game, to a strangers condition, where subjects play this game in changing group formations. From the first period onward, subjects in the partners condition contribute significantly more to the...

Recent experimental results show that equilibrium selection in coordination games exhibits remarkable regularities. We analyze three important determinants for equilibrium selection in coordination games, the size of the population of players, the number of periods during which players interact...