摘要
针对供应链与供应链竞争问题,研究随机需求下多条竞争供应链网络之间的竞争行为。通过定义产品市场链说明供应链网络之间是如何竞争的,在市场需求是随机且产品的品牌有差异的情况下,利用多项式logit模型以及变分不等式的方法,构建了具有随机需求的多条竞争供应链的网络均衡模型.模型很好的刻画了包含多条供应链,且每条供应链具有多个层次的供应链网络之间的竞争行为,研究表明供应链与供应链的竞争可以看作是由核心企业所决定的供应链网络之间的竞争.最后,通过一个算例说明了模型的合理性和有效性.
According to the competition problem of supply chain versus supply chain, this paper researched the competitive behaviors among supply chains with random demand. It explained how do supply chains compete against each other by the definition of product- market chain. Under the condition of random demand and product differentiation, a network equilibrium model of multi-competitive supply chains with random demand is established by using the Logit model and variational inequality. The model well characterize the competitive behaviors among supply chain networks which composing of multi-supply chains that with multi-levels. These discussions show that the competition among supply chains can be seen as the competition among supply chain networks that determined by the core business. Finally, a numerical example is given to show the rationality and effectiveness of the model.
出处
《数学的实践与认识》
北大核心
2015年第2期97-105,共9页
Mathematics in Practice and Theory
基金
国家自然科学基金(71171069)
国家自然科学青年基金(71301036)
