Çok Seviyeli Rekabetçi Kapalı Döngü Tedarik Zinciri Ağ Tasarımı: Karşılaştırmalı Bir Analiz

Öz

Kısıtlı doğal kaynaklar ve bunların bilinçsizce tüketilmesi, son yıllarda hammadde yerine atık malzemenin işlenme oranının artmasına yol açmış ve endüstriyel ortamı daha rekabetçi hale getirerek, Tedarik Zinciri Yönetiminin (TZY) dinamiklerini değiştirmiştir. Kullanım ömrü sonu ürün sayısının artması ve bunlarla ilgili çevresel kaygılar, aynı zamanda müşteri baskılarına cevap verebilmek adına lojistiğin tersine çevrilmesine büyük özen gösterilerek Kapalı Döngü Tedarik Zinciri (KDTZ) tasarımı ve optimizasyonu üzerine ilgi artmıştır. KDTZ, geniş bir literatüre sahiptir ve bu çerçevede tedarik zinciri maliyetlerini optimize etmek için pek çok model geliştirilmiştir. Literatürün çoğu tekil tedarik zinciri ile ilgilidir ve mevcut rakip tedarik zincirlerini görmezden gelir. Ancak, günümüzün rekabetçi pazarlarında, tedarik zincirleri birkaç rekabetçi şirket tarafından birbirine entegre şeklinde oluşturulmakta ve daha fazla pazar payı elde etmek için birlikte rekabet ederek çalışmaktadır. Böyle bir ortamda, tedarik zincirleri içinde ve arasında farklı rekabet biçimleri vardır. Bu bağlamda, makale ürün geri kazanımı için bir takım teşviklerle kullanılmış ürünleri iade etme isteğini artırarak sürdürülebilir tüketimi iyileştirmeye çalışan iki üretici, bir toplama&geri dönüşüm merkezi ve müşterilerden oluşan çok seviyeli rekabetçi KDTZ yönetiminde dağıtım ağlarının tasarımı ve optimizasyonu problemini ele almaktadır. KDTZ yönetiminde farklı amaçlara sahip karar vericiler için uzlaşık çözüme ulaşmak için dört farklı Etkileşimli Bulanık Programlama (EBP) yaklaşımı kullanılmış ve sonuçlar analiz edilmiştir.  

Anahtar Kelimeler

• Çok-seviyeli programlama
• Rekabetçi kapalı döngü tedarik zinciri.
• etkileşimli bulanık programlama
• geri dönen ürün yönetimi
• karma tamsayılı doğrusal olmayan programlama
• rekabetçi kapalı döngü tedarik zinciri

Multi-Level Competitive Closed Loop Supply Chain Network Design: A Comparative Analysis

Öz

Limited natural resources and unconscious consumption have led to a substantial increase in the rate of processing waste material instead of raw materials in recent years and changed the dynamics of Supply Chain Management (SCM) by making the industrial environment more competitive. The interest in Closed Loop Supply Chain (CLSC) design and optimization is increased with great care being taken to reverse logistics in order to respond to customer pressures as well as environmental concerns associated with the increasing number of end-of-life products. CLSC has extensive literature and many models have been developed to optimize supply chain costs. Most of the literature deals with single supply chains and ignores existing competing supply chains. However, in today's competitive markets, supply chains are integrated with each other by several competitive companies and work together to gain more market share. In such an environment, there are different forms of competition within and between supply chains. In this context, the paper addresses the problem of design and optimization of distribution networks in multi-level competitive CLSC management consisting of two producers, a collection & recycling center and customers trying to improve sustainable consumption by increasing the willingness to return used products with some incentives for product recovery. In order to reach a consensus solution for decision makers who have a different purpose in CLSC management, four different Interactive Fuzzy Programming (IFP) approaches are used and the results are analyzed.

Anahtar Kelimeler

• Competitive closed loop supply chain optimization
• interactive fuzzy programming
• mixed integer nonlinear programming
• multi-level programming
• returned product management

Kaynakça

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