EFFECTS OF REVISING THE DECISIONS IN SUPPLY CHAINS

Year 2022, Volume: 33 Issue: 3, 440 - 451, 31.12.2022

Mehmet Alegöz

https://doi.org/10.46465/endustrimuhendisligi.1110656

Abstract

Real life applications reveal that the supply chain actors may revise their decisions such as the wholesale prices or selling prices, when they feel that their decisions are no longer the optimal decisions for them. Motivating from this fact, this study investigates the economic and environmental effects of revising the decisions in a closed-loop supply chain consisting of a manufacturer, a remanufacturer, and a retailer. To this end, we propose game theory based models for the cases where the actors do not have the ability of revising their decisions (Case NR) and the actors have the ability of revising the decisions (Case R). After obtaining the equilibrium decisions in both cases, we compare the decisions under various parameter settings. Computational results bring significant managerial insights regarding the economic and environmental effects of revising the decisions in supply chains.

Keywords

Supply Chain Management, Closed-Loop Supply Chains, Optimization, Game Theory

TEDARİK ZİNCİRLERİNDE KARARLARI REVİZE ETMENİN ETKİLERİ

Abstract

Gerçek hayat uygulamaları, tedarik zinciri aktörlerinin, verdikleri kararların kendileri için en iyi karalar olmadığını düşündükleri durumlarda toptan ve perakende satış fiyatı gibi kararlarını revize ettiklerini göstermektedir. Bu gerçekten yola çıkarak, bu çalışma bir üretici, bir yeniden üretici ve bir perakendeciden oluşan kapalı devre bir tedarik zincirinde kararları revize edebilmenin ekonomik ve çevresel etkilerine odaklanmaktadır. Bu amaçla aktörlerin kararlarını revize etme imkanlarının olmadığı (Durum NR) ve aktörlerin kararlarını revize etme imkanlarının olduğu (Durum R) durumlara yönelik oyun teorisi temelli yaklaşımlar öne sürülmüştür. Her iki durum için de aktörlerin denge durumu kararları elde edildikten sonra, farklı parametreler altında bu kararlar birbirleri ile karşılaştırılmıştır. Hesaplama sonuçları tedarik zincirlerinde kararları revize edebilmenin ekonomik ve çevresel etkileri konusunda önemli yönetimsel bulguları beraberinde getirmiştir.

Keywords

Tedarik Zinciri Yönetimi, Kapalı Devre Tedarik Zincirleri, Optimizasyon, Oyun Teorisi

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