Enhancing circular construction through procurement: A conceptual stakeholder-centric collaborative framework for sustainable outcomes

Circular procurement (CP) represents the complex process of acquiring and managing goods, services, and works in a manner that supports circular economy principles, emphasizing waste reduction, material reuse, and resource regeneration. As an emerging paradigm, its success is modulated by several stakeholders, requiring cross-functional collaboration and a clear understanding of each stakeholder's roles and capabilities that can effectively navigate its intricacies. In this paper, we identify crucial stakeholder roles under the new CP paradigm and consolidate interrelationships among stakeholder groups. Using MoSCoW prioritization by six CP experts, the study conceptualizes capabilities that induce collaboration between different stakeholder roles for effective CP implementation. The findings of the study reveal critical stakeholders at each phase of CP implementation based on their power, legitimacy, urgency. Government agencies, design teams, circular audit experts, and end-of-life management professionals are among the definitive stakeholders identified within the CP implementation process. In addition, their key collaborative capabilities for effective CP implementation were revealed as trust, coordination, decision-making power, technical knowledge, and information sharing capabilities. The study further identifies key areas to enhance collaboration for CP implementation among stakeholders, driving sustainable innovation and reducing environmental impacts. The findings and propositions provide decision support for practitioners and policy makers to enhance collaboration effectiveness, promote stakeholder satisfaction, and achieve successful sustainable outcomes.