This paper considers a distribution channel of a two echelon time competitive supply chain with one supplier and one downstream retailer facing a product market characterized by short product life and uncertain demand. In addition , the estimation of demand volatility from the supplier and the retailer is asymmetric. Decision models of optimal planned delivery lead time, ordering, and unit wholesale are established separately under the complete and non-complete information about demand volatility. Compared with the optimal decisions under the complete information on demand volatility, we examine the potential benefits of information sharing and its impacts on the only wholesale price contract, revenue sharing contract, and buyback contract. Results show that the only wholesale price contract cannot reach the channel coordination when the retailer underestimates the demand volatility while the supplier does not, while the reasonable profit sharing contract as well as the buyback contract benefit to facilitate information sharing and to improve the profits of the entire channel.
Keywords-information sharing;decisions under uncertainty; distribution channel; time competitive supply chain;game theoryI.(
This paper discusses the supply planning problem for remanufacturing system, and the supply chain is composed of one manufacturer agent (MA), one supplier agent (SA) , and one collector agent (CA), in which the recovery and the treatment of the used products are done by CA. Both MA and SA have two alternatives for supplying each production materials: either ordering the required parts to each supplier or to CA who provides the "as new" production materials dismantled or disassembled from used products. We proposed a general framework for this remanufacturing environment and a mathematical model to minimize the total operational cost of each chain partner and the whole supply chain. Finally we design a set of experimental data to validate the model and analyze the effects of recovery rate on the performance of the whole supply chain. The research result shows that used product recovery and remanufacturing process contributes to enhance the performance of the whole supply chain.
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