Model and algorithm for medicine logistics centerlocation based on alliance effect
基于联盟效应的医药物流中心选址模型及算法

For the logistics system of medicine supply chain, it analyzed the demand character of medicine supply chain logistics, explained the significance about building the shared logistics center between production enterprises and wholesale enterprises in the medicine supply chain. This paper proposed a structure mode of logistics alliance which can embody the maximum benefit under the cooperation of the three party. It established a bilevel programming model for the location of logistics center of medicine logistics alliance, the object of upper planning is maximum alliance benefit, and the lower planning considered the distribution model of Shapley based on alliance game, which reflected the maximum distribution interest of each party. Lastly it designed the solving model of genetic algorithm. The result of a tested example shows that the practical operability of the method and algorithm is more effective, and it is a reference method for deciding the location of logistics nodes.