Abstract: | The present research examined the effects of information sharing about self‐interest and group membership of the negotiation partner on negotiation cognitions, behaviors and outcomes. Study 1 (n = 77) showed that in anticipation of the negotiation, participants placed more trust in an in‐group member, and were more willing to exchange information with a negotiation partner who revealed his/her self‐interest. Study 2 (n = 80) examined how these effects influenced the development of attitudes and behavior during and after the negotiation. Results showed that negotiations with in‐group members were more cooperative when they shared, rather than not shared, information about underlying self‐interest. By contrast, negotiations with out‐group members were more cooperative when they did not share, rather than shared, information about their underlying self‐interest. Copyright © 2006 John Wiley & Sons, Ltd. |