基于公平偏好的供应链延保服务模型研究

为研究公平偏好对供应链延保服务决策和协调的影响,构建了一个强零售商提供延保服务而制造商具有公平偏好的供应链模型.首先,探讨和比较了公平偏好对集中化决策和分散化决策两种情形下供应链节点企业的决策变量和利润的影响,发现产品价格与公平偏好正相关,而延保服务的销售价格、延保服务的质量、节点企业的利润和供应链总利润均与公平偏好负相关,并且公平偏好加剧了供应链系统决策效率的损失.然后,研究了该供应链系统的协调问题,发现收入共享契约无法协调该供应链系统.两部定价契约能否实现该供应链的完美协调,取决于公平偏好程度,制造商的公平偏好越强,协调效果越差.

Extended warranty models of supply chain with fairness preference

To study the impact of fairness preference on extended warranty (EW) decision-making and supply chain coordination, we construct a two-level supply chain system with single dominated retailer who provides the extended warranty (EW) and single manufactory has fairness preference. Firstly, the impact of fairness preference on node enterprises' decision and profits in the centralized and decentralized models are examined and analyzed respectively. The results show that product prices and fairness preference are positively related, but EW price, EW quality, and node enterprises' profits and the total system are negatively related to fairness preference. And fairness preference will intensify the loss of supply chain decision efficiency. Then, the coordination problem of the supply chain system is studied. It is shown that the supply chain system could not be coordinated by traditional revenue-sharing contract. However, there exists a Pareto improvement for the two-part tariff contract, whether it can realize perfect coordination depends on fairness preference. The stronger fairness preference of manufacturer is, the worse the effectiveness is.