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针对由2个零售商和1个供应商组成的二级供应链,基于存在Bertrand竞争的2零售商的成本信息共享模型,研究了供应链中的零售商与供应商最优期望收益的影响因素及其灵敏度分析。结果表明:在各种信息共享组合下,各零售商的收益与零售商成本方差成正比例关系,与零售商所售产品的替代系数成反比例关系,与零售商间成本的相关系数成反比例关系;供应商的收益与零售商所售产品的替代系数成反比例关系。当信息共享存在时,供应商的收益与零售商成本方差、零售商间成本的相关系数成正比例关系。
Aiming at the secondary supply chain composed of two retailers and one supplier, based on the cost information sharing model of two retailers with Bertrand competition, this paper studies the influencing factors of the optimal expected return of retailers and suppliers in the supply chain And its sensitivity analysis. The results show that under various information sharing combinations, the returns of retailers are directly proportional to the variance of retailer costs, inversely proportional to the retailer ’s substitute coefficients, and inversely proportional to the retailers’ costs. The return of a supplier is inversely proportional to the replacement factor of the product the retailer sells. When information sharing exists, the profit of suppliers is directly proportional to the variance of retailer’s cost and the inter-retailer’s cost.