Procurement Approaches in Different Supply Chains
From a purchasing point of view, it can be argued that in order for a supply chain to be efficient the cost of purchasing must be balanced with risk pertaining to the supply market and the purchased product. To decide on the appropriate forms of supplier relationships today, we argue that there are three main dimensions to be considered: A more complex environment. Supply chain efficiency. Product life cycle.
S. Pap and L. Morar, "Procurement Approaches in Different Supply Chains", Applied Mechanics and Materials, Vol. 436, pp. 551-556, 2013