Dr. ZHANG Ruixue, RachelRachelDr. ZHANG Ruixue2026-05-292026-05-292026Zhang, R. (2026). Too many cooks spoil the broth: Effect of team proactive personality composition on team voice. In Hong Kong Shue Yan University (Ed.). Conference proceeding of international conference on human resilience: Navigating life changes & challenges (HRCONF2026). International Conference on Human Resilience: Navigating Life Changes & Challenges (HRCONF2026), Hong Kong Shue Yan University (pp. 43). Hong Kong Shue Yan University.http://hdl.handle.net/20.500.11861/27276Although the positive effect of proactive personality on voice behaviour has been well-established at the individual level, does the same relationship emerge at the team level? We draw on dominance complementarity theory and the team compositional model of proactive personality and investigate the effect of team-level proactive personality on team voice. We hypothesise that the dispersion of a team’s proactive personality moderates the relationship between the mean level of a team’s proactive personality and team voice through two mediators: task conflict and relationship conflict. The analyses, based on multi-source and multi-wave data from different industries (i.e. hospitals and construction companies) across two field studies, support most hypotheses. Under high dispersion of a team’s proactive personality, the mean level of a team’s proactive personality contributes to high team voice through increasing task conflict and decreasing relationship conflict. Theoretical and practical implications are also discussed.enTeam Proactive PersonalityDominance ComplementarityTeam VoiceTask ConflictRelationship ConflictConference Paper