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中文摘要：
针对不同生产商生产的同种产品为非同质可替代产品，不同类别的消费者对产品质量、品牌等属性的偏好不同，且消费者不完全了解产品相关信息，研究具有多种商品流动的三层供应链网络均衡模型．运用Nash均衡方法分析生产商之间，零售商之间的竞争行为；将消费者的产品选择视为出行者的路径选择，运用基于随机效用理论和多项式logit模型的弹性需求随机均衡配流模型来刻画需求市场均衡；分别得到了供应链网络各层均衡及整体均衡的条件和变分不等式模型，最后给出了求解算法和算例．
英文摘要：
Under the assumption that customers＇ preference for product characters, such as quality, brand and so on, varies from class to class and cunsumers have insufficient information for products, a three-level competitive supply chain network equilibrium model with multi-commodity is studied in consideration of heterogeneous substitutable products. Competitive behavior between manufactures and retailers is analyzed by using Nash equilibrium theory. By treating product choice of consumers as path choice of passengers, the stochastic traffic assignment model with elastic demand based on stochastic utility theory and multinomial logit model is utilized to characterize the demand market equilibrium. Equilibrium models of each level and whole network are developed by using variational inequality method, along with their equilibrium conditions. Finally, an algorithm is put forward and applied to solving a numerical example.
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