The product reaches the consumer through a staged sequence of processes. The individual sections of the supply chain are interdependent. The relationships between the individual players are usually characterized by unequal power relations.
Christopher, M., 2011. Logistics & Supply Chain Management. 4th ed. Harlow: Pearson Education Limited.
Johnson, T. E., Howard, M. & Miemczyk, J., 2014. Purchaising and Supply Chain Managment: A sustainability perspective. New York: Routledge.