关键词: 数量折扣契约, 三级供应链, 供应链协调, 突发事件, 随机价格

Abstract: When the price was fluctuated caused by emergencies,whether or not a three-stage supply chain could be coordinated with quantity discount contract was researched.Emergencies not only caused large scale fluctuations in market demand,but also made retail prices fluctuate randomly with the change of supply and demand relationship in the market.On basis of the background,a quantity discount contract model was built.By analyzing this model,the conclusions showed that the benchmark quantity discount contract could not coordinate to respond to emergencies,unless did appropriate adjustment for trade price.Moreover,the optimal ordering and pricing strategies in supply chain were given to answer the emergencies under the condition of stochastic price,which was compared with the circumstances of emergencies and no emergencies under the condition of stable price respectively.The validity of the proposed method was proved by numerical cases.

Key words: quantity discount contract, three-stage supply chain, supply chain coordination, emergencies, stochastic price