基于时尚周期的服装供应链协调策略

Strategy for apparel supply chain coordination based on fashion cycles

分析服装产品需求随着市场变化而变化的特点,这些特点影响供应链成员的决策方案。在不同的博弈关系、议价能力、信息结构及组织结构下,不同生命周期中销售商的风险偏好有所不同。引入产品时尚指数的概念,建立基于时尚指数的风险规避系数模型。通过对集中模式和分散模式下期望效用函数的分析,得出了最优回购策略。通过实例仿真验证了在不同时尚周期下零售商的风险规避系数随时尚指数的减小而增大。为达到供应链的完美协调,供应商提供回购价也应增大,以达到激励零售商的作用。考虑时尚指数将更清楚地反映不同时尚阶段成员对市场的期望,得出最优协调参数,从而优化供应链的利润。

It is commonly understood that the demand for apparel varies with the market. This character which affects the decision-making of the supply chain participants is analyzed. Having different competitive power, price negotiating ability, information channels and organizations, retailers＇ risk preference also varies with product life cycles. This paper introduced the concept of fashion index and established a factor-based risk avoiding model. Through analyzing the expected utility function in both centralized and distributed modes, the optimal buy-back strategy is figured. Simulation of actual examples verified that in different fashion cycles retailers＇ risk avoiding factor increases with the decrease of fashion index. In order to achieve the perfect coordination of the supply chain, suppliers＇ buy-back price should also increase accordingly to encourage retailers. This study indicates that considering the fashion index will better display the market expectation of the members in different periods of the fashion cycle, thus obtaining optimal coordination parameters and maximizing the profits of the supply chain.