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...

Whether incentive contracts perform better than trust in terms of productiveefficiency is usually explored by principal-agent experiments (mostinvolving only one agent). We investigate this issue in the context of athree-person ultimatum experiment, which is simpler and more neutrallyframed than...

We enrich the choice task of responders in ultimatum games by allowing them to independently decide whether to collect what is offered to them and whether to destroy what the proposer demanded. Such a multidimensional response format intends to cast further light on the motives guiding responder...

In the hybrid game, one proposer confronts two responders with veto power: one responder can condition his decisions on his own offer but the other cannot. We vary what the informed responder knows about the offers as well as the uninformed responderś conflict payoff. Neither variation affects...