Abstract

This paper develops a Stackelberg game model of a one-supplier and one-retailer supply chain with deteriorating product to investigate how to coordinate the price and service level decisions under vendor-managed inventory (VMI) and examine system efficiency. We study the equilibrium price and service level decisions under the decentralized setting and the centralized setting, respectively; and design a generalized revenue-sharing mechanism to coordinate the supply chain. We find that the interaction between the retail price and the service level may invert the effect of deterioration rate on the retail price. The system efficiency of decentralized supply chain increases with market scale, price sensitivity, deterioration rate, the supplier's cost (including unit production cost, holding cost, and deterioration cost), and service investment efficiency, while decreases with production rate. In addition, we find that VMI may invert the effect of deterioration rate on the unit wholesale price of the decentralized supply chain; in the coordinated setting, the retailer should pay a higher transfer price to the supplier with VMI than that without VMI, the transfer price decreases with service investment efficiency, and higher service investment efficiency shrinks the transfer price difference.

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