Research on Supply Chain Network Equilibrium Model based on Supply-side

From the perspective of the supply-side, this article elaborates the supply chain network equilibrium problem. We take the influence of manufacturing location, technology innovation ability, brand differences as the random variables in the supply-side, and the influence of product performance, brands as the random variables in the demand-side. They served to study three levels of supply chain network with multiple commodity flows. In this paper, random utility theory and polynomial logit model are used to analysis the random selection of product in the supply-side and random selection of purchase in the demand-side. And then, using Nash equilibrium model combined with the variational inequality model formulate the competitive behavior among in the distribution centers. After the operation, conditions for equilibrium in supply chain network are obtained, as well as their economic significance. Finally, a solution algorithm and a numerical example are given to further explain it.