Vendor selection and order quantity allocation in volume discount environments

摘要: This article presents a multiobjective mixed integer programming approach to simultaneously determine the number of vendors employ and order quantities allocate these in multiple‐product, multiple‐supplier competitive sourcing environment. The selection process is driven by price, delivery, quality objectives buyer subject capacity constraints vendors. In this context, offer discounts on total amount sales volumes not quantity or variety products purchased from them. paper solution methodology problem. Results computational experiment suggest that real‐world applications proposed model are both computationally practical realistic.