Green supply chain management and sustainable competitive advantage: exploring the role of green ambidexterity innovation

Purpose The purpose of this study was to explore the effects of green supply chain management, with a focus on green manufacturing (GM), green purchasing (GP) and corporate collaboration, on sustainability and competitive advantage, with the mediating role of green ambidexterity innovations (GAI). Design/methodology/approach This study used a survey design to collect data from 679 respondents, including healthcare administrators, supply chain managers, procurement officers, sustainability officers and other hospital staff involved in decision-making related to supply chain management and innovation across all public hospitals in Ghana. Findings The study reveals that GM negatively impacts GAI and does not directly lead to a sustainable competitive advantage (SCA). GP positively influences GAI but does not directly contribute to SCA. Cooperation with customers significantly boosts both GAI and SCA, highlighting the importance of involving patients and stakeholders in sustainability initiatives. The study also highlights GAI's mediating role in the relationship between GSCM and the outcome. Originality/value This study offers original insights by highlighting the complex interplay among green supply chain practices, innovation and SCA in healthcare, and by emphasising the pivotal role of customer collaboration in driving green innovation.