This research examines how shared leadership affects team performance over time. We argue that shared leadership, conceptualized and measured as team members’ network density of mutual leadership and influence, affects team performance because it enhances the team’s transactive memory system (TMS) – a system of distribution and retrieval of team members’ specialized knowledge. Based on a seven-wave longitudinal study, we developed a dynamic model to capture the mediation effect of TMS and the temporal effect of shared leadership and TMS on future team performance. With observations on the full life cycle of the teams participating in the project, we found that shared leadership had a positive effect on team performance and that TMS mediated this positive relationship. In addition, we found that the effect of shared leadership on team performance was stronger during the early stages of the team life cycle, and again TMS mediated this conditional effect.

这项研究研究了共同领导如何随着时间的推移影响团队绩效。我们认为，共享领导力的概念和衡量方式是团队成员相互领导和影响的网络密度，它会影响团队绩效，因为它增强了团队的交互式记忆系统（TMS），即一种分配和检索团队成员专业知识的系统。基于七波纵向研究，我们开发了一个动态模型来捕获TMS的中介作用以及共享领导和TMS对未来团队绩效的时间影响。通过观察参与该项目的团队的整个生命周期，我们发现共同的领导对团队绩效有积极影响，而TMS则起到了这种积极的作用。此外，