The effects of information and aspiration level on bargaining behavior

This paper examines a crucial problem facing a bargainer in interpersonal negotiation; should he seek additional information about an opponent's reward structure. The “information is weakness” hypothesis and the “reality of aspiration” hypothesis give conflicting recommendations concerning this question. An “information-aspiration” model is presented as an explanation of why the findings which give support to both positions are not necessarily contradictory. This model is tested in a 2 × 2 factorial design where 80 buyers bargained having either complete or incomplete information and low or high aspiration levels, against 80 sellers with incomplete information. In general the model was supported in that bargainers with low aspirations tended to gain strength with additional information, while those with high aspirations tended to lose strength with additional information.