This experiment examined the effects of motivational orientation (prosocial
versus egoistic) on interpersonal trust, negotiation behavior, amount of i
mpasses, and joint outcomes in three-person negotiations. Students particip
ated in a joint venture negotiation, in which motivational orientation was
manipulated by allocating individual incentives (egoistic motive) vs. team
incentives (prosocial motive). Results indicated that prosocially motivated
negotiators achieved more integrative agreements and fewer impasses, and r
eported higher trust, more problem solving, and less contending behavior th
an egoistically motivated negotiators. Hierarchical regression suggested th
at the finding that prosocial groups achieved higher joint outcomes can be
explained by higher levels of trust, more problem solving behavior, and les
s contending behavior in prosocial groups.