“…3 Empirical studies within the engineering design stream have identified such economies of scope can occur in a variety of industrial contexts (such as automotive manufacturing, aerospace engine manufacturing, consumer electronics), and a variety of organizational settings. For example, while early studies of manufacturing platforms observed them within firms, research has also documented how manufacturing platforms were increasingly being shared across firms within supply-chains (Brusoni, 2005;Zirpoli and Becker, 2011;Zirpoli and Caputo, 2002;Brusoni and Prencipe, 2009;Sturgeon, 2002;Doran, 2003;Huang et al, 2005;MacDuffie, 2013;MacDuffie and Helper, 2006;Sako, 2009;Simpson et al, 2006;Tatsumoto et al, 2009). Most recently, technological platforms have been found to operate within even larger networks of firms that are not necessarily linked through buyer-supplier relationships -also known as "innovation ecosystems" (Adner and Kapoor, 2010;Nambisan and Sawhney, 2011) or "ecologies of complex innovation" (Dougherty and Dunne, 2011).…”