This study examines individual-level origins of team organizational citizenship behaviors (OCB). Building on the literature on trust and social exchange theory, we hypothesize that individual-level leader charisma is indirectly related to team OCB through individual-level trust in leader. Additionally, we propose that the positive relationship between leader charisma and trust in leader is stronger under conditions of high organizational change. Based on data from 142 team members and 33 leaders, results reveal an indirect bottom-up relationship between individual-level leader charisma and team OCB through trust in leader. High change impact at the team- but not at the individual-level facilitates the positive relationship of leader charisma with trust in leader. The findings show how individual-level phenomenon can contribute to the emergence of team-level OCB.
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