“…Thereby, they have contrasted portfolio quadrants in terms of differences in product characteristics (Kraljič, 1983;Van Weele, 2010), purchasing skills (Knight et al, 2014), buyersupplier relationships (Bensaou, 1999;Dubois and Pedersen, 2002;Gadde and Snehota, 2000), power structures (Caniėls and Gelderman, 2005;Cox et al, 2003b;Cox et al, 2001;Pazirandeh and Norrman, 2014) and organizational structures (Gelderman and Semeijn, 2006). This study goes beyond the approach adopted in these works, as it links specific, actionable sourcing tactics to the purchasing portfolio theory.…”