“…Furthermore, intense discussions have centred on the advantages related to the cost and innovativeness of a collaborative relationship, as well as the challenges of managing such a relationship effectively (Johnsen, 2009;Rosell and Lakemond, 2012). Another body of literature has emphasized the importance of input by the customer, henceforth referred to as the customer's knowledge as this study is performed in the context of collaborative customer-supplier relationships (Day, 2000;Campbell, 2003;Lin and Huang, 2013). Firms that proactively use this knowledge in order to foster and enhance long-term relationships can create a significant competitive advantage (Campbell, 2003;Jayachandran et al, 2005;Salojärvi et al, 2013).…”