Quantity Flexibility Contract In Supply Chain For Short-life Products Under Disruption

With the development of the economy globalization and the popularization of net work and scientific manufacture technology, the productivity of the enterprises increase infinite and the collaboration between them becomes tighter and more frequent .At the same time, for the external environment of the supply chain is complex, dynamic and uncertain, the disruptions supply chain faced become much more than before. More frequency cooperation and several of advanced management increase the possibility of the disruption's appearance, and also enhance the span and depth of the influence, which make supply chain more fragile when facing the disruption.Competition between the enterprises in future is the competition between the supply chains, and disruption is ineluctable, so how to reduce, eliminate the negative influence even make profit from it when the supply chain face with the disruption is the problem we have to solve. Contract is proposed to solve the problems of the supply chain under disruption in this paper, based in such background. The paper focuses on short-life products and gives a view of the former researches, then analyses the emphases and deficiency in that. Then the paper gives a detailed expatiation of the short-life products, contracts for supply chain and supply chain disruption management and imports the quantity flexibility contract. In the following parts of the article, we study a Two-Level supply chain on how to deal with the disruption from the perspective of system optimization, based on the quantity flexibility contract. Initially, we study the coordination of supply chain- linear demand and nonlinear demand- under normal circumstances with quantity flexibility contract, and then study the impact caused by disruption. We modify the original strategy based on the former coordination and make new quantity flexibility policy to coordinate the supply chain in such condition, and then use numeric examples to prove the feasibility of the model. At last, the paper gives a summarization and prospect of the research.