Abstract
Recently, Green Supply Chain Management (GSCM) has gained recognition as a strategic response to sustainability challenges, yet its application in the public sector of developing country is limited. To address this gap, the purpose is to investigate the direct role of biospheric values on GSCM and indirectly through generative concerns and environmental attitude. Moreover, the study examines the moderating role of generative leadership on these relationships. Based on the natural resource-based view (NRBV) theory, a theoretical framework is developed. A survey approach was adopted to collect 251 responses from employees working in public sector departments in Pakistan Hazara division. The Partial Least Squares Structural Equation Modeling (PLS-SEM) affirmed that biospheric values positively promote GSCM. Moreover, generative concern and environmental attitude play a mediating role between biospheric values and GSCM. Furthermore, generative leadership significantly moderates the relationship between biospheric values and GSCM, generative concerns, and environmental attitude. The study contributes to theory by extending NRBV to public sector sustainability practices and by highlighting generative concern and environmental attitude as critical mediators. It also establishes generative leadership as a key contextual enhancer. Practically, the findings suggest that embedding pro-environmental values and generative leadership can help public organizations to implement waste-reduction, sustainable supply chain and resource-efficiency strategies.