A Reverse Logistics Model with Integer Setup Numbers

A production-recycling system is investigated. A constant demand can be satisfied by production and recycling. The used items are bought back and then recycled. The not recycled products are disposed off. A model is examined with EOQ-type inventory holding costs and linear waste disposal, recycling, production and buyback costs. It will be shown that under these circumstances the mixed strategies are dominated by the pure strategies. The paper generalizes a former model proposed by the authors for the case of integer recycling and production batch.