Research On Decision Making Of Suppliers And Retailers Of Supply Chain Under The Emergency Risk Scenarios

In recent years, a variety of natural disasters or emergencies continue to occur, which seriously affect the daily activities of the supply chain operations of enterprises and also cause the social stability of the country some adverse effects. Therefore, in the face of emergencies, in order to minimize the losses suffered and maximize the ability to the resist risks of the supply chain system, emergency makers must make the right coping strategies, which is the most important research focus in the supply chain emergency management. Based on this, it is necessary to study the response strategy of supply chain system under the situation of the sudden risk.Firstly, in this paper we summarize research status about coping strategies of supply chain system under sudden risk scenarios at home and abroad. We also describe the significance of this topic and give an overview of related theories about it.Secondly, we analyze the burst risk of supply chain system, including the definition, the analysis of influence factors, formation mechanism on it, and generalize the impact analysis about the burst risk to the supply chain system structure, providing a theoretical foundation for the following coping strategies of supply chain system.Thirdly, in this paper we use a three-level supply chain system-multiple suppliers,a manufacturers and a retailer as an object of study,and we mainly consider the unexpected risks of the suppliers. Based on this situation,we adopt the multi-objective programming model and put forward the expectation-prospect theory strategy and expectation-regret theory strategy. The two strategies make the supply chain enterprise to obtain the biggest profits, make the enterprise achieve maximum ability against the emergency risk, make the supply chain system obtain maximum expectation perceived utility, and finally makes the enterprise successfully overcome the sudden risk.The two strategy ultimately solved the problems of selecting the optimal numbers of suppliers, the logistics volume of the supply chain system, the inventory and safety stock of the manufacturer.Finally, in the basis of Ya’an earthquake risk, we make a brief introduction of Ya’an earthquake profile and conduct detailed analysis about an Information Technology enterprise supply chain system of coping strategies. The numerical example is given to verify the correctness and validity of the decision-making models.