Explaining the evolution and maintenance of cooperation among unrelated individuals is one of the fundamental problems in biology and the social sciences. Recent experimental evidence suggests that altruistic punishment is an important mechanism to maintain cooperation among humans. In this...

Explaining the evolution and maintenance of cooperation among unrelated individuals is one of the fundamental problems in biology and the social sciences. Recent experimental evidence suggests that altruistic punishment is an important mechanism to maintain cooperation among humans. In this...

The effects of stake size on cooperation and punishment are investigated using a public goods experiment. We find that an increase in stake size does neither significantly affect cooperation nor, interestingly, the level of punishment.

The formation of social ties is examined in an experimental study of voluntary public good provision. The experiment consists of three parts. In the first part the value orientation (attitude to a generalized other) ismeasured. In the second part couples play 25 periods of a public good game. In...

The formation of social ties is examined in an experimental study of voluntary public good provision. The experiment consists of three parts. In the first part the value orientation (attitude to a generalized other) is measured. In the second part couples play 25 periods of a public good game....

We examine the force of three types of behavioral dynamics in quantity-setting triopoly experiments: <OL> <LI>mimicking the successful firm, <LI>following the exemplary firm, and <LI>belief learning. </OL> Theoretically, these three rules of dynamic conduct lead to the competitive, the collusive, and the...</li></li></li></ol>

We investigate contributions to the provision of public goods on a network when efficient provision requires the formation of a star network. We provide a theoretical analysis and study behavior in a controlled laboratory experiment. In a 2x2 design, we examine the effects of group size and the...

Economic behavior often takes place in groups of small numbers of peopleinteracting with each other (like work teams, neighborhoods, socialnetworks, etc.). Characteristic of such interaction is the development of(affective) interpersonal relationships, or social ties. According tosociologists,...

We examine the force of three types of behavioral dynamics in quantity-setting triopoly experiments:mimicking the successful firm,following the exemplary firm, andbelief learning.Theoretically, these three rules of dynamic conduct lead to the competitive, the collusive, and the Cournot-Nash...

We study fairness and reciprocity in a Hawk-Dove game. This alllows us to test various models in one framework. We observe a large extent of selfish and rational behavior. Our results are inconsistent with leading models in this field.