ارائه مدل کنترل موجودی برای اقلام منسوخ‌شدنی با لحاظ‌کردن تأخیر در پرداخت و تورم

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، دانشگاه علم و صنعت.

2 استادیار، دانشگاه علم و صنعت.

چکیده

در سیستم کنترل موجودی کلاسیک، درآمد فروش محصول در لحظه تحویل کالا فوراً دریافت می‌شود و کالاها می­ توانند عمر نامحدود داشته باشند؛ اما در دنیای واقعی کالاهایی وجود دارند که به مرور زمان بر اثر به ­وجود­آمدن فناوری جدید ارزش خود را از دست می دهند که به­ عنوان کالاهای منسوخ­ شدنی شناخته می­ شوند. همچنین برای ترغیب خریدار، فروشنده می ­تواند به خریدار این اجازه را بدهد تا هزینه خرید را با تأخیر پرداخت کند. در این پژوهش یک مسئله کنترل موجودی منسوخ­ شدنی با سیاست پرداخت معوقه در شرایط تورمی با هدف دستیابی به حداقل هزینه بررسی خواهد شد. نتایج عددی نیز در یک مطالعه موردی واقعی صنعت خرده ­فروشی تلفن همراه ارائه شده است. نتایج نشان می ­دهد با کاهش دوره منسوخ­ شدن با توجه به اینکه ریسک منسوخ ­شدن کالا افزایش می­ یابد، مقدار سفارش­ بهینه کاهش می ­یابد نتایج حاکی از آن است که استفاده ترکیبی از سیاست­ های مدیریت موجودی با در­نظر­گرفتن تأخیر در پرداخت باعث کاهش هزینه ­های موجودی می ­شود.

کلیدواژه‌ها


عنوان مقاله [English]

An Inventory Model for Obsolescence Items with Permissible Delay in Payments and Inflation

نویسندگان [English]

  • Hassan Zamani Bajegani 1
  • Mohammad Reza Gholamian 2
1 PhD. Candidate, Iran University of Science and Technology.
2 Assistant Professor, Iran University of Science & Technology.
چکیده [English]

     In classic inventory control system, the sales revenue is received immediately upon delivery of the products and the products have unlimited lifetime. But, in real world, there are items that lose their value over time because of the emergence of the new technology which are known as obsolescence items. Moreover, the seller can authorize the purchaser to delay the purchase. In this paper, an obsolescence inventory control model with delay in payment policy will be considered in an inflationary context in order to achieve minimum cost and numerical results are also presented in a real case study of the mobile retail industry. The results show according to the considered permissible payment period which is determined based on the actual market situation, with decreasing in the obsolete period, given that the risk of obsolete goods will increase, the optimal order quantity will decrease. In addition, the results indicate that the use of inventory management policies with regard to delayed payment reduces the cost of inventory.

کلیدواژه‌ها [English]

  • Inventory Control
  • Delay in Payment
  • Obsolescence
  • Inflation
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