انتخاب تامین کنندگان با رویکرد تئوری بازی همکارانه با در نظر گرفتن محدودیت ظرفیت و ارسال همزمان اقلام

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد، دانشگاه آزاد اسلامی واحد تهران جنوب، تهران، ایران.

2 استادیار مهندسی صنایع، دانشگاه آزاد اسلامی واحد تهران جنوب، تهران، ایران.

چکیده

انتخاب تامین‌کننده از مسائل مهم و کلیدی در حوزه زنجیره تامین به شمار می‌رود. طی دو دهه اخیر، به دنبال افزایش خواسته‌ها و انتظارات مشتریان و به تبع آن افزایش روزافزون رقابت صنعتی، این اعتقاد به ‌وجود آمده است که رقابت مابین شرکت‌ها مطرح نبوده بلکه این زنجیره‌های تامین هستند که با یکدیگر به رقابت می‌پردازند. براین اساس برخی محققان مدل‌هایی را پیشنهاد نموده‌اند که به جای تمرکز صرف بر عایدی خریدار، هزینه کل‌ زنجیره‌تامین را مبنا قرار می‌دهند. در این پژوهش زنجیره‌تامینی شامل یک خریدار و چندین تامین‌کننده در نظر گرفته شده و به تحلیل تصمیمات انتخاب تامین‌کننده، تصمیمات موجودی و سیاست‌های ارسال محصول پرداخته شده و یک مدل همکارانه به منظور یکپارچگی این تصمیمات توسعه یافته است. در این مدل، سیکل سفارش خریدار مضرب صحیحی از سیکل تامین کننده بوده و تامین‌کنندگان امکان برون‌سپاری باقی‌مانده ظرفیت خود را دارند. در این پژوهش نشان داده شده که همکاری بین اعضای زنجیره تامین منجر به پاسخ‌های پایداری می‌گردد که هزینه‌های زنجیره را برابر مدل متمرکز خواهد نمود. هم‌چنین نشان داده شده که هزینه فرصت اعضای زنجیره در انتخاب تامین کنندگان، میزان سفارش تخصیص یافته به آن‌ها و عایدی زنجیره تامین تاثیر چشم‌گیری دارد. در مثال عددی این یافته‌ها تشریح شده‌اند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

A game theoretic model for capacity-constrained supplier selection by considering joint shipment

نویسندگان [English]

  • Atieh Masheli 1
  • Davood Mohammaditabar 2
1 Department of Industrial Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran.
2 Department of Industrial Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran.
چکیده [English]

Supplier selection is one of the most important issues in supply chain management. Recent models in supplier selection are based on total supply chain cost point of view to adjust with growing competition among supply chains.
The joint decision making of procurement lot-size, supplier selection, production decisions and shipment policy selection has potential to reduce total supply chain costs. In this paper, a single-buyer multi-suppliers model in a two level supply chain is presented and a cooperative game theory model is proposed to analyse the decisions. In this regard, the selected suppliers and total supply chain costs are found. We assumed that the selected suppliers’ setup time interval is integer multipliers of the replenishment cycle time of the buyer and also suppliers are able to outsource their remaining capacities. It is shown that the cooperative model could result in a stable solution with same total supply chain cost as the centralized model and also, when suppliers have equal opportunity costs for each single production capacity, selected suppliers are determined independent from the opportunity cost but when the suppliers have different opportunity costs, the selected suppliers are influenced by the opportunity cost that they have. A numerical example describes the findings.

کلیدواژه‌ها [English]

  • Supplier selection
  • joint shipment
  • total supply chain cost
  • Cooperative game theory

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