Thecoordination Of Supply Chain With Random Fluctuation Price And Price-Depend Demand

Supply chain members have different goals and different information resources because of the uncertainty of demand environment, which will lead to the "double marginal effect "in the chain. Supply chain coordination can effectively deal with this problem by establishing a reasonable coordination mechanism which can make the members of the supply chain share the risk and increase the profit of the supply chain. Due to the impact of the economic cycle and policy factors and natural environment, the price of some products will fluctuate in a certain range, and most of the products in the market demand will be influenced by the fluctuation price, if the price is relatively low, it is easy to attract a large number of customers come to buy, otherwise it is difficult to stimulate the purchase desire of customers. This thesis studies the coordination of the supply chain under price fluctuations environment and influence the demand by use buy-back contract and option contract. The main contents of the thesis include:(1) Study on the supply chain coordinate only considering the influence price factors which influence the demand. We first set up the mathematical model of centralized decision-making and decentralized decision-making, and give the theoretical analysis of the model, design of the solution method, which shows that there still exist a "double marginal effect" under the price volatility. Then the mathematical model is established by using the buy-back contract. And coordination the supply chain with the buy-back contract, it shows that the simple buy-back contract can coordinate the supply chain, but not the reasonable distribution of profits. It is proved that the joint contract between the buy-back contract and wholesale price can solve the defect of the buy-back contract. The supply chain can achieve perfect coordination by looking for the reasonable combination of repurchase price and wholesale price. Finally, numerical examples are used to verify the mathematical model, and the sensitivity of the coordination parameters is analyzed.(2) This thesis also studies the coordination of supply chain problem considering the demand is influenced by both the fluctuation price random factor and other comprehensive random factors. The mathematical models of centralized decision-making and decentralized decision-making are set up respectively, and discussed the conditions for the existence of the optimal solution. Firstly, the coordination of the supply chain is discussed by the joint contract between the buy-back contract and wholesale price. It shows that the choice of the appropriate wholesale price and the buy-back price can also make the supply chain to achieve perfect coordination under the dual random environment. Then establish the supply chain model with option contract, discusses the coordinating role of option contract of supply chain. Note that only set the appropriate option purchase price and the strike price, sellers will purchase options, and make the supply chain coordination.