“…Some of these studies showed that the environmental performance of certified organizations did not exceed that of uncertified organizations, or that the standard implementation resulted in very limited benefits (Barla, 2007;Welch et al, 2003). Other studies showed that certification served primarily as a means to improve company image, respond to stakeholder pressures and bolster the trust of exchange partners (Corbett and Kirsch, 2001;Goh Eng et al, 2006;Jiang and Bansal, 2003;King et al, 2005). This search for institutional legitimacy through ISO certification seems often to be disconnected from the search for environmental performance (Boiral, 2003(Boiral, , 2007Jiang and Bansal, 2003), although this hypothesis remains to be validated.…”