产品随机选择下多商品流供应链网络均衡模型研究

研究产品存在产地、品牌差异情况下,具有多种商品流动的三层供应链网络均衡模型.将产地、品牌差异的影响视为随机变量,运用随机效用理论和多项式logit模型研究需求市场上产品随机选择问题,运用Nash均衡方法分析生产商之间、零售商之间的竞争行为,分别得到了供应链网络各层均衡及整体均衡的条件、经济解释和变分不等式模型,最后给出了求解算法和具体算例.

A Multi-commodity Flow Supply Chain Network Equilibrium Model with Stochastic Choice

A three-level competitive supply chain network equilibrium model with multi-commodity is studied in consideration of the product differentiation of region and brand.Stochastic utility theory and multinomial logit model are used to analyze stochastic choice in demand market,while the influence of region and brand is treated as stochastic variable.Competitive behavior of manufactures and retailers is analyzed by using Nash equilibrium theory.The equilibrium models of each level and whole network are developed by variational inequality method,along with their equilibrium conditions and economic interpretations.Finally,an algorithm is put forward and applied to solving a numerical example.