Recent theories of public administration emphasize the importance of leadership as shared property. This research focuses on the role of the interaction between vertical and shared leadership in promoting agency performance. Specifically, it examines the joint effects of shared leadership and transformational leadership on team empowerment and performance in public settings. Based on field study data collected from 74 street-level bureaucracies and 423 public servants in Brazil, we find evidence that vertical transformational leadership strengthens the direct relationship between shared leadership and team empowerment as well as the indirect relationship between shared leadership and school performance through team empowerment (a moderated-mediation model). The findings of this study suggest that greater attention should be paid to the dynamics of shared and vertical leadership structures to better understand their consequences for team processes and outcomes in public settings.

中文翻译：

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共享和变革型领导对基层官僚机构绩效的共同影响：来自教育部门的证据

最近的公共行政理论强调了领导力作为共享财产的重要性。本研究侧重于垂直领导和共享领导之间的相互作用在促进机构绩效方面的作用。具体来说，它考察了共享领导和变革型领导对公共环境中团队授权和绩效的共同影响。根据从巴西 74 个街道级官僚机构和 423 名公务员收集的实地研究数据，我们发现垂直变革型领导加强了共享领导与团队授权之间的直接关系以及共享领导与通过团队的学校绩效之间的间接关系的证据赋权（一种有调节的中介模型）。