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Articles by Zhaohua Wang
Total Records ( 2 ) for Zhaohua Wang
  Guo Li , Bingzong Peng , Tao Gao and Zhaohua Wang
  A well-coordinated assembly system plays an important role in an enterprise’s strategic management. As the uncertainty of the supply chain is increasing, coordinating the assembly system effectively under supply disruption becomes a critical success factor for a global supply chain system. In this study, we consider an assembly system with two suppliers and one manufacturer and formulate the model of each partner with bonus policy under supply disruption. The optimal decision of each partner is analyzed under decentralized decision. Then we optimize the total cost of assembly system under centralized decision which is regarded as the benchmark. Furthermore, to achieve this benchmark, the compensation mechanism is designed to coordinate the assembly system under supply disruption. At last, the sensitivity is analyzed and the numerical analysis shows that our compensation mechanism is reasonable and effective.
  Guo Li , Mengqi Liu , Tao Gao and Zhaohua Wang
  The literature under random component yield has focused on coordination of supply chain at the determined price, where decision maker chooses its optimal production quantities. We considered a centralized system when the price is not determined under both random yield and demand. Type A with perfect quality and type B with imperfect quality are produced due to the random yield. We prove the unique concavity of expected profit in centralized system at determined price. Then dynamic pricing is considered and algorithm is put forward for dynamic pricing. Errors can be sufficiently small as long as some parameters can be set suitably. Apart from lot sizing and dynamic pricing, we also provide qualitative insights based on numerical illustration of centralized and decentralized solutions.
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