The Study Of Supply Chain Coordination Based On Demand Quantity Disruption

With the rapid development of science and technology, the improvement of economic globalization and the increasingly complex market environment, the competition is transferred from the product quality and distribution channel of traditional single enterprise to the supply chain. Supply chain coordination becomes a key part of supply chain management. In recent years, the demand function, time, locus and the cost function of supply chain enterprises are changed by frequent disruptions, the original plan can not be implemented smoothly, the difficulty of supply chain coordination is increased, the supply chain efficiency is decreased, the survival and development of the supply chain enterprises are threatened. It is practically and theoretically important to study the supply chain coordination under disruptions.Disruptions are paroxysmal, urgent and destructive. The supply chain coordination under disruptions is based on the regular process. First it is needed to consider the profit of each decision-maker under different alliance situation of the three enterprises. Four kinds of profit when the supply chain is central control, three enterprises decide respectively, the retailer and the manufacturer ally, the manufacturer and the supplier ally are analyzed. The profit allocation model of three-level supply chain is established. The model is solved by applying Shapley value method. The supply chain coordination mechanism under regular operation is obtained. The coordination mechanism under regular operation is not active when disruptions result in the distribution change of demand function. It is needed to amend the model under regular operation. The amended coordination mechanism under disruptions is obtained. In order to verify the accuracy and reliability of the amended coordination mechanism, the simulation which provides an intuitive basis for the enterprise decision makers is carreid on by appling Matlab7.0.A conclusion is draw that the paradox between the system optimun condition and sub-system sub-optimum condition is solved perfectly by applying Shapley value method to allocate the profit when Shapley value method is applied to solve the model of three-level supply chain coordination. The profit of each decision-maker under different alliance situation changes correspondingly when disruptions result in demand function. The changed profit is allocated again reasonably and fairly by applying Shapley value method. The purpose of supply chain coordination under disruptions is obtained.The research enriches the content of supply chain disruption management and provides supply chain decision makers the theoretical basis to make disruption coordination strategy under disruptions; it has practical significance for strengthening disruption operational capabilities, enhancing supply chain flexibility of responding to disruptions, achieving the purpose of reasonable profit allocation.