<![CDATA[This study examines how Green Supply Chain Management (GSCM) influences sustainability performance through the mediating role of sustainable competitive advantage. Grounded in the perspective of sustainability-oriented performance measurement, this research addresses inconsistencies in prior findings regarding the effectiveness of GSCM across organizational contexts. A quantitative approach was employed using survey data collected from 70 employees of electronic distribution companies in Bali, Indonesia. Data were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). The results indicate that GSCM has a positive and significant effect on both sustainable competitive advantage and sustainability performance. Furthermore, sustainable competitive advantage significantly enhances sustainability performance and partially mediates the relationship between GSCM and sustainability performance. These findings suggest that the effectiveness of GSCM depends not only on operational implementation but also on the firm’s ability to transform environmental practices into strategic advantages. This study contributes to the literature by clarifying the mechanism linking GSCM and sustainability performance and highlighting its relevance within sustainability performance evaluation. Practically, the findings provide insights for firms in emerging economies to strengthen sustainability strategies through integrated supply chain and competitive positioning.]]>
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