Ala Pazirandeh. The volume can also be used as reference for MBA courses in procurement or, in general, courses related to supply chain management. Understand the purchasing function’s contribution to profitability. Power is a complex concept in any relationship. One. Abstract. Preface xv. Purchasing and Supply Chain Management. Its relative, centralised purchasing strategy, key isions are made by headquarters (associated with. Discuss the advantages and disadvantages of centralized purchasing