“…Although most of these studies are based on an optimistic view of ISO management systems efficiency, the results of empirical studies regarding this question are often contradictory. Thus, in the case of the ISO 9000 standard, many studies have emphasized the benefits of the standard in terms of improved quality, customer satisfaction and production management (Bhuiyan and Alam, 2005;Naveh and Marcus, 2005;Standards Council of Canada, 2000). On the other hand other studies, fewer in number, have questioned these benefits and consider that the standard has little or no impact on the improvement of performance (Acharya and Ray, 2000;Boiral, 2003;Heras et al, 2002;Wilson et al, 2003).…”