Question 4 (Marks: 10) There are three types of relations between buyers and suppliers, and these differ significantly. Procter & Gamble as well as Wal-Mart, have worked together to establish long-term EDI linkages, shared forecasts, and pricing agreements with their suppliers. You are required to discuss the three types of buyer-supplier relationships and identify which relationship will be best suited for Procter & Gamble as well as Wal-Mart respectively.