文章以单个物流分包商和单个物流集成商组成的两级物流服务供应链为研究对象,在单周期单一能力下,建立物流分包商主导的基于回购的物流服务供应链数量折扣模型,并分析该模型下物流集成商和物流分包商各自的最优决策.最后,通过数值实验可以得出,随着折扣的增加,物流集成商的物流能力采购量和物流分包商的单位回购价格下降,物流集成商期望利润增加,物流分包商期望利润减少,供应链系统期望利润增加、系统绩效提高.%A two-stage logistics service supply chain（LSSC）which contains one logistics service integrator（LSI） and one logistics service subcontractor（LSS） is studied.In single cycle and single capacity,quantity discount model on the basis of repurchase for LSSC is established under the leader of LSSC.Then the best decision of LSI and LSS under the model is analyzed.Finally,a numerical experiment shows that logistics service integrator＇s logistics capability purchase quantity and logistics service subcontractor＇s unit repurchase price descend with the increase of quantity discount,LSI＇s expected profit increases,LSS＇s expected profit descends.However,the supply chain system＇s expected increases and the system performance increases.
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