Research On Profit-sharing Contract Model In Three-level Supply Chain Under Fuzzy Demand

Distribution of benefits is a key outstanding issues and contradictory to the supply chain collaboration,and profit sharing contract as an important contract mechanism of supply chain coordination,which plays a decisive role between the supply chain stability and sustainable development. When enterprises are facing an uncertain market and fierce competition,it is not easy to obtain enough information for the short life cycle of high-tech products,which makes it difficult to use statistics or probability curve to accurately describe the changes in market demand,and can have a general judgments to the market size and direction of changes in demand. Therefore, using the corresponding theoretical to research products market demand and make effective measures to coordinate the supply chain relationship between business interests of each node, has an important theoretical and practical significance to maintain and improve supply chain efficiency and the normal operation of the order.In this paper, three-level supply chain with fuzzy demand profit sharing contract is taken as the research object, discussed the market with fuzzy demand profit sharing contract on the three supply chain coordination. based on the analysis of progress,the main content and technology roadmap of this paper has been presented; described the fuzzy credibility theory, the definition of supply chain coordination, the characteristics and composition of the three supply chain,which are associated to supply chain with fuzzy demand profit sharing contract; through the analysis of the decentralized and centralized control of expected profit model, the bilevel programming model which is under the coordination of profit sharing contract is designed; with fuzzy simulation and genetic algorithm, the hybrid intelligent algorithm which is used to solve the contract parameters of bilevel programming model is designed; finally, an example is performed to prove the feasibility and effectiveness of the of the model. The conclusion indicates that the model not only has a better measure, while in practice also has the characteristics of convenient operation and high reliability.The purpose of this paper lies in providing theoretical guidance and reference for the coordination and management of supply chain, based on the balance of business interests to improve the overall supply chain efficiency and market competitiveness.