Birbiri yerine değiştirilebilen iki ürün içeren satım yapısının analizi

ABSTRACTCOORDINATION OF A TWO LEVEL SUPPLY CHAINWITH TWO SUBSTITUTABLE ITEMSAğcagül YılmazguM.S. in Industrial EngineeringüuuSupervisor: Prof. Ulkü GürlerDecember 2004This study deals with a single period newsboy type inventory problemwith two products which can be substituted if one of them is out of stockin a two level supply chain. It is allowed to return some or all of the unsoldproducts to the manufacturer with some credit. The expected chain profit, theexpected retailer and the manufacturer profit expressions are derived undergeneral conditions. Special cases are inspected to investigate the conditionsunder which channel coordination is achieved. It is demonstrated that channelcoordination can not be achieved if full credit and full returns are allowed.Key words: inventory, channel coordination, return contracts.iii