考虑紧密和松散供应商的双渠道采购决策研究  

Dual Sourcing Procurement Decisions Considering Collaborative and Arms-length Suppliers

作　　者：温源[1,2] 叶青[1] 

机构地区：[1]清华大学经济管理学院,北京100084 [2]国家开发银行广西分行,广西南宁530028

出　　处：《南京理工大学学报》2012年第6期1052-1058,共7页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金(70901045;70890082)

摘　　要：为分析需求与供货可靠性相关关系及需求更新对采购策略的影响,考虑制造商可先后向紧密和松散供应商采购某部件,建立两阶段双渠道采购模型。通过分析三阶海赛矩阵证明最优采购策略存在且唯一,并求得最优解。研究结果表明:制造商的采购决策服从具有联动效应的边际分析规则;需求和供应可靠性的波动显著影响采购决策,其相关关系令制造商利润减少;即使紧密供应商部件价格更高,风险中性制造商仍可能向其采购,以免失去销售机会。To analyze the correlations of demand and supply reliabilities and the effects of demand updates on procurement decisions, a two-stage dual sourcing framework is built considering that a manufacturer can order from collaborative and arms-length suppliers. The existence and uniqueness of the optimal procurement decision are proved by analyzing a three-dimension Hessian matrix, and the optimal solution is derived. The research results show that the procurement decisions of manufacturers obey a rule of correlated marginal analysis ; the fluctuations of demand and supply reli- abilities have notable impacts on the procurement decisions, and their correlations reduce the manu- facturers＇ expected profits;risk-neutral manufacturers may procure from collaborative suppliers even though they have higher wholesale prices, so as to avoid missing potential sales opportunities.

关 键 词：紧密供应商 松散供应商 双渠道 采购 需求更新 

分 类 号：F406.7[经济管理—产业经济]