Purpose The purpose of this paper is to investigate the impact of institutional drivers and buyer dependency on green supply chain management (GSCM) practices and performance of suppliers. Design/methodology/approach The authors draw on institutional theory and resource dependence theory to construct a conceptual model than links institutional drivers, GSCM practices, buyer dependency and performance outcomes. The authors test the hypotheses using partial least squares structural equation modeling applied to a sample of suppliers in the Australian manufacturing sector. Findings The results confirm that suppliers develop GSCM practices of green sourcing and eco-design to enhance their performance in response to both coercive forces and voluntary behaviors of their institutional environment. However, buyer dependence of suppliers explains important paradoxes in their uptake of GSCM practices. For example, while the institutional drivers encourage greater adoption of green sourcing by suppliers, increase in buyer dependence in turn reduces the positive performance outcome of green sourcing.