摘要
在现货市场和传统契约市场共存时,研究了现货供应的不确定性和销售商的风险规避态度对于销售商的采购策略的影响。首先,在现货供应充足和供应不确定两种情况下分析了实现供应链协调的最优订购量和退货价格,以及销售商的风险规避态度对于订购量的影响.然后,通过数值计算进行了分析和验证.结果表明,现货供应充足时的订购量总是低于现货供应不确定时的订购量;但现货供应充足时供应链的期望利润高于现货供应不确定的情况.现货市场存在下,风险厌恶因子对订购量的影响趋势与单纯契约市场下正好相反.
This paper analyzes the optimal procurement strategies when spot market supply is abundant or short with the coexistence of spot and contract market.First,we analytically derive buyer＇s optimal ordering and supplier＇s return price when spot market is abundant or short,as well as the effects of buyer＇s risk-averse attitude on optimal ordering policy.Numerical examples are used to explore the optimal ordering and expected profits both in abundant and short supply situations.Results show that short supply in spot markets always leads to an increase in order quantity than the case of abundant supply.However,short supply in spot markets leads to a decrease in buyer＇s expected profit than the case of abundant supply.When integrating the risk-averse attitude into the model,the optimal ordering policy in dual supply environments is exactly the opposite to that of the traditional contract case.
出处
《管理科学学报》
CSSCI
北大核心
2011年第4期24-35,共12页
Journal of Management Sciences in China
基金
国家自然科学基金资助项目(7067202070521001)
教育部博士点基金资助项目(200800060005)
关键词
供应链管理
现货市场
退货策略
风险厌恶
supply chain management
spot market
returns policy
risk averse
