預付-現金-信用交易條件下關於具有效期限的退化性物品存貨模式之研究

A study on inventory models for deteriorating items with expiration date under advance-cash-credit payments

范登翔(Deng-Xiang Fan)

指導教授 ： 楊志德

健行科技大學/商管學院/工業管理系碩士班/碩士(2018年)

摘要

本研究主要探討在允許預付-現金-信用交易的條件下，建立一個考慮變動需求且具有效期限之退化性物品的存貨模式。本文考慮兩個存貨模式，首先假設需求率與新鮮度跟貨架陳列水準有關，建立具有效期限的退化性物品之存貨模式。主要目的是決定最適的時間長度、補貨期間長度及訂購量使得零售商的全年總利潤為最大。接著，加入了銷售價格去探討，進一步，我們利用幾個較符合實際的數值範例來說明求解程序並對主要參數進行敏感性分析。之後，藉由數值分析，我們找出上述信用交易條件下的最適決策與最適全年總利潤。由於兩個模式的複雜性，本研究將提出演算法來找出最適解。最後，根據數值分析結果，找出相關的管理意涵與研究結論，並期望能提供給決策者擬定訂購策略時的參考。

關鍵字

存貨模式 ； 預付-現金-信用交易 ； 存貨水準相依需求 ； 退化性物品

並列摘要

This study mainly discusses the conditions for allowing advance payment-cash-credit trade conditions, establish an inventory model for degenerative goods that considers changing demand and has a lifespan. This article considers two inventory models, Firstly, assuming that the demand rate and freshness are related to the shelf display level, an inventory model for deteriorating items with effective deadlines is established. The main purpose is to determine the optimal length of time, the length of the replenishment period and the order volume so that the retailer's total profit for the year is the maximum. Then, adding the sales price to explore, further, we use several practical examples of enthalpy values to clarify the solution and perform sensitivity analysis on the main enthalpy. After that, through numerical analysis, we find out the optimal decision and the optimal total annual profit under the above credit transaction conditions. Due to the complexity of the two models, this study will propose an algorithm to find the best solution. Finally, according to the results of numerical analysis, to find out the relevant management implications and research conclusions, and hope to provide a reference for decision makers when formulating ordering strategies.

並列關鍵字

Inventory model ； Advance payment-Cash-Credit trade ； Inventory level dependency ； Deterioration Items

參考文獻

參考文獻

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3. Baker, R. C. & Urban, T. L. (1988). A deterministic inventory system with an inventory-level-dependent demand rate. Journal of the Operational Research Society, 39, 823-831.

4. Callaway, D. S., Fowlie, M., & McCormick, G. (2018). Location, location, location: The variable value of renewable energy and demand-side efficiency resources. Journal of the Association of Environmental and Resource Economists, 5(1), 39-75.