“…Correspondingly, PBL can involve the deployment of different forms of power, deriving from: official position (institutional power); control over funds or other rewards (resource power); the ability to articulate visions for change shared by others (interpretive power); or personal social capital (network power) (Sotarauta, 2016a). Because the prospective actors are from various institutional domains, this mode of leadership is also relational in that it requires interaction across boundaries of various types (e.g., organizational/sectoral, professional/disciplinary, territorial/administrative) (Gibney, Copeland, & Murie, 2009;Horlings, Collinge, & Gibney, 2017). As Nicholds, Gibney, Mabey, and Hart (2017) argue, PBL entails a 'complex, large-scale social and economic co-production of activity comprising a range of power and resourcerelated, community and personal agendas and negotiations across organizations, disciplines and professions' (p. 251).…”