This study provided empirical clarification of the effects of factors presumed in the negotiation literature, but not clearly demonstrated, to be central to the negotiation process. One hundred and forty subjects participated in a simulated labor-management negotiation to determine the effects of perceived ability and impartiality of a mediator and time pressure on negotiation. Results showed that negotiators utilizing a mediator perceived to be high in ability gained more money, were influenced to a greater extent, and perceived the mediator as more powerful and favorable than negotiators with a mediator perceived to be low in ability. Also, negotiators bargaining with a high perceived-ability mediator ended with more money, were more influenced, and indicated more satisfaction than controls. Finally, time pressure produced more contract settlements in the high timepressure situation than in the low time-pressure situation.Mediation as a strategy to facilitate agreement plays an integral role in the resolution of conflicts in the public and private sectors. Mediators are requested to aid parties in all types of negotiations from community disputes to labor-management negotiations to international conflicts (Rubin and Brown, 1975).

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