Impact of Institutional Pressures on External Program Manager Involvement: Evidence from Large Projects in China

External program manager involvement can provide professional and systematic management services to owners. It help manage coordinate different subprojects ensure the achievement of overall strategic goals large projects. The promotion external is not only efficiency-driven, but institutional environment also has a significant impact. This study developed theoretical model explain how influenced by forces (coercive, mimetic, normative pressures) internal top support. Based on questionnaire survey, this tested research through partial least-squares structural equation modeling. empirical results revealed that coercive pressures have no impact involvement; owners’ support acts as complete mediator between mimetic greatest involvement, plays key partially mediating role. A direct contribution reveal types isomorphic be better exercised facilitate managers. Going further, incorporating both into model, provides insight organizations are institutions apply tools or approaches internally.