“…Through interaction, communication, information sharing, coordination and collaboration across functional departments, II is known to have a positive effect on the performance of new product development and innovation (Gupta et al, 1986;Griffin & Hauser, 1996;Olson et al, 1995;Griffin, 1997;Troy et al, 2010). Based on the similar arguments, EI involves similar efforts between customers and suppliers, which can support joint development of new products (Ettlie & Reza, 1992;Griffin & Hauser, 1996;Handfield et al, 1999;Verona, 1999;Ragatz et al, 1997Ragatz et al, & 2002Monczka et al, 2000;Koufterous et al, 2005;Petersen et al, 2005;Tessarolo, 2007;Lau et al, 2010;Wong et al, 2012).…”