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    Inventory management and pricing in existence of secondary markets
    (Işık Üniversitesi, 2019-08-01) Kaya, Burak Erkan; Hekimoğlu, Mustafa; Işık Üniversitesi, Fen Bilimleri Enstitüsü, Endüstri Mühendisliği - Yöneylem Araştırması Yüksek Lisans Programı
    Secondary markets are easily accessible market-places for every participant of a product market, where usually lower prices and shorter lead times than the Original Equipment Manufacturer (OEM) are o?ered. Especially when price is dynamic, determining procurement amount is very important for the OEM who wants to maximize pro?t in existence of secondary markets. The goal of this study is to put an approach forward for maximizing pro?t of the OEM by taking into consideration price and procurement amounts from di?erent suppliers. We consider a trade environment in which OEM is not only a seller on secondary markets but also a buyer. We propose 2 single period additive non-linear maximization models by taking into consideration access priority of the OEM or Price Sensitive Customers (PSC) to secondary markets. We examine proposed models analytically and analyze one of them with Karush-Kuhn-Tucker (KKT) conditions. Due to analytical impracticalities faced in numerical experiments a brutal force search algorithm is applied under some assumptions. Our research provides some managerial insights about inventory management and pricing by considering some parameters as constant. We show e?ects of procurement from di?erent supply sources under our assumptions.