Jell-Ojobor, MariaRaha, Aveed2025-01-242025-01-242022Jell-Ojobor, Maria, and Aveed Raha. “Being Good at Being Good—The Mediating Role of an Environmental Management System in Value-Creating Green Supply Chain Management Practices.” Business Strategy and the Environment 31 (5): 1964–84. 2022.https://doi.org/10.1002/bse.2993https://hdl.handle.net/20.500.14490/866This study adopts a resource-based view to explain the complementary role of the corporate structure in the value creation of green supply chain management (GSCM) practices. Using 8-year panel data collected from 317 US international manufacturers, we analyze the influence of GSCM practices on corporate financial performance (CFP) and the mediating role of a certified environmental management system (EMS) in this relationship. We show that GSCM practices have a positive impact on accounting-based financial performance, meaning, return on assets (ROA) and return on equity (ROE). In contrast, firms that implement GSCM practices and a certified EMS simultaneously achieve a higher market valuation in terms of Tobin's Q in addition to a higher ROA and ROE in the following year. Our study demonstrates that, through their synergistic combination with a firm's complementary EMS, utilizing GSCM practices can result in intangible assets as sources of long-term financial benefits. Our results have several theoretical and managerial implications. They also address the limitations of the prior use of varying survey-based items for internal and external GSCM practices and add nuance to the existing GSCM practices in the literature.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Corporate financial performance (CFP)Environmental management system (EMS)Greensupply chain management (GSCM) practicesResource-based theoryValue creationArticle