Emotions as strategic information: Effects of other’s emotional expressions on fixed-pie perception, demands, and integrative behavior in negotiation

Negotiators often fail to reach integrative (”win–win”) agreements because they think that their own and other’s preferences are diametrically opposed—the so-called fixed-pie perception. We examined how verbal (Experiment 1) and nonverbal (Experiment 2) emotional expressions may reduce fixed-pie perception and promote integrative behavior. In a two-issue computer-simulated negotiation, participants negotiated with a counterpart emitting one of the following emotional response patterns: (1) anger on both issues, (2) anger on participant’s high priority issue and happiness on participant’s low-priority issue, (3) happiness on high priority issue and anger on low-priority issue, or (4) happiness on both issues. In both studies, the third pattern reduced fixed-pie perception and increased integrative behavior, whereas the second pattern amplified bias and reduced integrative behavior. Implications for how emotions shape social exchange are discussed.