延遲付款下考慮需求變動與允許缺貨之非即時損耗性商品存貨模式

Non-instantaneous deteriorating items inventory model with varying demand and shortage under permissible delay in payments

陳韋全(Wei-Chuan Chen)

指導教授 ： 黃惠民

中原大學/電機資訊學院/工業與系統工程研究所/碩士(2012年)

https://doi.org/10.6840/cycu201200262

摘要

在過去的幾十年中，已經有廣泛的研究損耗性商品存貨模型對應的短生命週期產品需求的不確定性，容易發生過剩的庫存。大量生產通常是產商品的必要性，因為庫存不足將會導致客戶流失，並可能威脅到公司的聲譽。大部分商品具有損耗的特性；然而，並非所有的商品立即損耗，因此當零售商收到商品時，通常維持一段的原始品質或狀態。因此定義這種現象稱為“非即時損耗”。
本研究在允許延遲付款下考慮需求變動與允許缺貨之非即時損耗性商品存貨模型。在競爭激烈的商業環境中，供應商可能會提供零售商付款的延遲時間。本研究目標是求得一個最佳的補貨政策，使零售商的利潤最大化。本存貨模型利用Maple13和Excel軟體來求解，最後利用數值範例與敏感度分析以驗證本存貨模型中的關鍵參數變化的影響。

關鍵字

非即時損耗性 ； 需求相依 ； 部分欠撥 ； 延遲付款

並列摘要

In the last few decades, there have been extensive studies on deteriorating inventory models corresponding to the growing concern on short-life cycle products and uncertainty of demand. One item that is proned to deterioration is the commodity product. Commodity products are necessity items that are typically produced in large lot sizes. Shortage in commodity products usually leads to loss of customers and company reputation. Not all items start to deteriorate instantantly when they are in stock. They will keep the original quality or state for a certain period (referred to as expiration date) before they deteriorate. This phenomenon is known as"non-instantane
ous deterioration".
This study proposes a non-instantaneous deteriorating items inventory model with varying demand and shortage under permissible delay in payment. In the competitive business environment, a supplier may provide a delay time of payment to the retailer. The inventory model consists of a retailer and a supplier. Our aim is to achieve an optimal ordering policy that results in the maximum profit for the retailer. The model is solved using Maple 13 and Excel. Numerical example and sensitivity analyses are provided to validate the proposed model and to demonstrate the changing effect of the key parameters to the profit.

並列關鍵字

permissibe delay in payment ； Non-instantaneous deteriorating items ； demand dependent ； partial backorder

參考文獻

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