In a two-person finitely repeated public goods experiment, we use intentionsdata to interpret individual behavior. Based on a random-utilitymodel specification, we develop a relationship between a player's beliefsabout others' behavior and his contributions' plans, and use this relationshipto...

The Shapley value of a cooperative transferable utility game distributes the dividendof each coalition in the game equally among its members. Given exogenous weightsfor all players, the corresponding weighted Shapley value distributes the dividendsproportionally to their weights. In this...

We use a two-person public goods experiment to distinguish betweene±ciency and fairness as possible motivations for cooperative behavior.Asymmetric marginal per capita returns allow only the high-productivityplayer to increase group payo®s when contributing positive amounts....

In a public goods experiment, subjects can vary over a period of stochasticlength two contribution levels: one is publicly observable (their cheap talkstated intention), while the other is not seen by the others (their secretintention). When the period suddenly stops, participants are restricted...

We investigate experimentally whether entry costs have an impact on the evolutionof cooperation in a social dilemma game. In particular, subjects repeatedly playthe so-called takeover game with anonymous partners randomly drawn from a fixedpopulation of participants. The game represents a social...

Collusive agreements are often observed in procurement auctions. They are probablymore easily achieved when competitors’ costs are easily estimated. If, however, the individualcosts of bidders are private information, effective ring formation is difficult to realize.We compare experimentally...

Applying an evolutionary framework, we investigate how a reputation mechanism and abuyer insurance (as used on Internet market platforms such as eBay) interact to promote trustworthinessand trust. Our analysis suggests that the costs involved in giving reliable feedbackdetermine the gains from...

In this paper we consider conventions as regularities in behavior which help to solve coordinationproblems in a society. These problems can be formalized as non-cooperative games with severalequilibria. We know that in such situations serious problems of equilibrium selection arise whichcannot...

It is commonly accepted that face-to-face communication inducescooperation. The experiment disentangles communication and socialeffect (replication of Roth, 1995) and examines the components of thesocial effect with the help of unilateral communication. Results suggestthat separate processes,...

Social institutions regulating group conduct have been regarded as necessaryfor human cooperation to transcend family bonds. However, manystudies in economics and biology indicate that reciprocity based on repeatedinteraction suffices to establish cooperation with non-kin. We shedlight on the...