| In recent years, the unexpected events occur more and more frequently, which not only affect people’s life, but also disturb the related supply chain operations seriously. More alarming, these events break the original supply chain coordination, and influence the performance of the supply chain members greatly. If we do not take measures to deal with them, it will cause great damage.In order to reduce the influence caused by unexpected events on the supply chain, and take reasonable control of emergencies, a two echelon supply chain consist of a supplier and several retailers is studied. Assume the demand is stochastic and is affected by the retail price. We study three kinds of supply chain collaboration model: centralize-dominant, supplier-dominant, retailer-dominant respectively. And establish the expected profit function of four different structures of supply chain before and after demand disruption. Then in order to design disruption mechanism, a linear PDS Scheme and KKT condition are used. On the basis of the mechanism, we analyze the results on the point of two views, one is from the supply chain robustness and the other is from the risk resistance capacity. We compare the influences of demand disruption on the supply chain members of different collaboration models and different structures in order to evaluate the risk control effect. Finally, The collaboration model and structure selection advice is provided.Our research obtains the following conclusions. From the perspective of the supply chain robustness, we can find that multiple channels can reduce the risk effectively and achieve better control of the risk, but the effect is also related to the value of customers’ preference to the retail channel and PDS Scheme coefficient. From the perspective of the supply chain risk resistance capacity, the results show that There is not a specific kind of structures can achieve the optimal control of all risk and it is closely related to the risk level. |
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