Study On Stackelberg Models Strategy And Of JIT Purchasing In Supply Chain

Along with the cutting down of the product life cycle and the enhancement of the customer's personalization demand, the fast response to market demand is becoming the tendency of supply chain global competition. JIT purchasing is precisely complied with this tendency, the JIT purchasing may reduce effectively the supply chain response cycle, realizing effective operation. But in reality, the reliability of JIT purchasing becomes the bottleneck question of supply chain quick response. This paper from the purchaser and suppliers' bilateral benefit, took the punctual delivery as the goal, researched on this phenomenon.First, analyzed the background on which this paper researched, through the summary of the study of JIT purchasing and stackelberg model in supply chain, elaborated the insufficiency of the current JIT purchasing research, established the goal and the significance of this paper.Next, expounded the correlation foundation theories which involved to this paper. Included the connotation of supply chain and supply chain management, and with the thought of JIT, carried on the contrast of purchasing in traditional supply chain and in the JIT supply chain. At the same time, expatiated the elementary theories about the stackelberg model and the newsvendor model, which involved to this paper.Once more, took the JIT purchasing in supply chain as the background, has carried on the revision to the predecessor's model, established the JIT purchasing model which only considers the factor of time based on the manufacturer and suppliers' stackelberg model. And obeys the exponential distribution in the time of delivery, solved the manufacturer and suppliers' stackelberg model, and then discussed the relationship between the time of delivery and the reward; The relationship between the reward and the stock cost; The relationship between the penalty cost and the extra investment.Finally, took the JIT purchasing in supply chain as the background, has established the consideration of time-quantity based on the manufacturer and suppliers' stackelberg model, and has carried on the optimization to the model. From the two dimensions of reliability time and quantity responded to JIT purchase, the model discussed the bilateral cooperation gambling relations. At the same time, completed the order quantity obeys to the normal distribution, the order time obeys to the normal distribution in the stackelberg model, and a numerical example was given to verify the validity of the...