İşletme Fakültesi

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Browsing İşletme Fakültesi by Institution Author "Çavdaroğlu, Nur Ayvaz"

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    Joint Pricing and Ordering Problem With Charitable Donations
    (Mdpi, 2020) Çavdaroğlu, Nur Ayvaz
    Finding the correct pricing strategy for a product with multiple versions is an issue for retailers from various industries. In this paper, joint pricing and ordering problem is considered for a product that has two versions at each selling period. Two models, namely with or without the donation option, are analyzed and optimality conditions and monotonicity properties of the decision variables are characterized. When demands of products depend on prices of both versions, donating part of old product inventory would be more profitable for the retailer. Moreover, the donation model would result in less wasted inventory, contributing to sustainability and goals of green economy. Analytical results are supported with numerical analysis of a realistic case.
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    Citation - WoS: 162
    Citation - Scopus: 199
    Municipal Solid Waste Management Via Multi-Criteria Decision Making Methods: a Case Study in Istanbul Turkey
    (Elsevier Science, 2018) Çoban, Aslı; Ertiş, İrem Fırtına; Çavdaroğlu, Nur Ayvaz
    In contemporary era solid waste management has become an important issue for developing countries. Rapidly increasing population higher life-standards and technological advancements consistently increase the amount and the diversity of solid waste. In such a complicated environment municipal authorities need to develop the most effective disposal solution to manage the ever-growing municipal solid waste. In this study various disposal techniques that are utilized globally are investigated and different scenarios that could be applicable to Turkey are created. These scenarios might also be implementable for other Europe and Central Asia (ECA) countries. For that purpose 8 solid waste disposal scenarios were evaluated via 7 criteria which are determined according to the opinions of the experts from the field. Towards this end three different multi-criteria decision-making methods namely Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) Preference Ranking Organization Method for Enrichment Evaluations (PROMETHEE) I and PROMETHEE II were utilized for the scenario evaluation. Consequently the most appropriate and feasible scenarios are determined. The results indicate the prominence of recycling and landfill technologies for developing countries. The results are consistent by means of all the three methodologies that are used. (C) 2018 Elsevier Ltd. All rights reserved.