An optimal selection of production and services company suppliers is one of the most important processes of the top management. According to ISO 9001:2015 developed for Quality Management System the type and range of control to be applied to the outsourced process can be influenced by many...

An economic lot size problem is studied in which a single vendor supplies a single purchaser with a homogeneous product and takes a certain fraction of the used items back for remanufacturing, in exchange for a deposit transferred to the purchaser. For the given demand, productivity, fixed...