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研究生:閻佑民
研究生(外文):YEN,YU-MIN
論文名稱:有限壽期產品之存貨模式探討
論文名稱(外文):A Study of Inventory Models for Deteriorating Items
指導教授:藍筱蘋藍筱蘋引用關係鐘崑仁鐘崑仁引用關係
學位類別:碩士
校院名稱:國防管理學院
系所名稱:資源管理研究所
學門:商業及管理學門
學類:其他商業及管理學類
論文種類:學術論文
論文出版年:1999
畢業學年度:87
語文別:中文
論文頁數:45
中文關鍵詞:存貨有限壽期產品折現促銷
外文關鍵詞:InventoryDeteriorationDiscounted Cash FlowPromote
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摘 要
就存貨研究的領域而言,不同之情境具有不同之存貨模式。 企業的存貨管理者所面臨重大問題之一,就是該如何有效地控制及管理有限壽期的產品,或稱為易腐壞性產品的存貨;甚至於我們亦可將產品的過時性歸於此類。
本研究針對這類有限壽期之產品,提供兩種情境存貨模式。其一為在無限時間下且考量物價膨脹﹝即金錢之時間價值﹞之狀況,如何以折現的觀點在最低總成本下取決適當之訂購量與購置決策期程;其二為對於一般壽期較短之產品,當其壽期將盡之際,但新壽期產品業已上市,故對原壽期產品採取降價促銷的作法,使得成本損失降至最低的狀況下,如何取決適當之訂購量與促銷期程。文中除了數學式之推導外,最後並以範例數據載入電腦計算。
關鍵詞:存貨、易腐壞性﹝有限壽期﹞產品、折現、促銷

ABSTRACT
In Inventory researching field, different situations there are different inventory models. The enterprises inventory managers
have to face one of the most important problems is how to control and manage products with limited life, or we can also called
deteriorating products. Even include the out-0f-date products.
In this research we provide two kinds of inventory models for these limited life products. The first is over an infinite plann-
ing horizon for a deteriorating item taking account of time value of money. How to decide the appropriate order quantity and order
period that keeps the total cost lowest? The second is for those sho rter life cycle products, when their life is almost exhausted but the
newest products are provided in the markets already. Therefore we have to reduce the price for promoting these older products in order to keep the cost loss minimum. How to decide the appropriate order quantity and the promotion period that keeps the total cost loss lowest? Numerical examples are included to illustrate the model and solution procedure in this composition.
Keywords: Inventory; Deterioration; Discounted Cash Flow; Promote

目 錄
中文摘要--------------------------------------------------------------Ⅰ
英文摘要--------------------------------------------------------------Ⅱ
誌謝--------------------------------------------------------------------Ⅲ
目錄--------------------------------------------------------------------Ⅳ
圖、表目錄-----------------------------------------------------------Ⅵ
第一章 緒論-----------------------------------------------------------1
1-1研究構想-----------------------------------------------------------1
1-2研究目的-----------------------------------------------------------3
1-3研究範圍-----------------------------------------------------------4
1-4研究限制-----------------------------------------------------------4
1-5研究假設-----------------------------------------------------------5
1-6研究步驟-----------------------------------------------------------5
1-7研究流程-----------------------------------------------------------6
第二章 文獻與相關理論探討--------------------------------------7
2-1需求率變動-------------------------------------------------------7
2-1-1線性趨勢-------------------------------------------------------7

2-1-2指數遞減趨勢------------------------------------------------10
2-2毀壞率變動------------------------------------------------------12
2-2-1毀壞型態------------------------------------------------------12
2-2-2浴缸曲線理論------------------------------------------------14
2-2-3 相關文獻-----------------------------------------------------16
2-3物價膨脹效果--------------------------------------------------17
第三章 模型建構---------------------------------------------------21
3-1名詞定義---------------------------------------------------------21
3-2符號說明---------------------------------------------------------22
3-3基本假設---------------------------------------------------------22
3-4模型建構一------------------------------------------------------23
3-5模型建構二------------------------------------------------------26
第四章 模式驗證---------------------------------------------------30
4-1範例說明--------------------------------------------------------30
4-2驗證結果--------------------------------------------------------30
第五章 結論與建議-----------------------------------------------33
5-1結論--------------------------------------------------------------33
5-2建議與未來研究方向-----------------------------------------34
參考文獻-------------------------------------------------------------36

參考文獻
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Management and Production Planning" John Wiley & Sons , New
York , Chp . 5 & Chp . 6 (1979) .
2. M . BEN-DAYA and ABDUL RAOUF "Inventory Models Invol-
ving Lead Time as a Decision Variable" J. Opl. Res. Soc. Vol. 45.
pp. 579-582 (1994) .
3. Hariga , M . "The Inventory Lot-Sizing Problem with Continuous
Time-Varying Demand and Shortages" J. Opl . Res . Soc .42 (7) ,
pp. 827-837 (1994) .
4. KUN-JEN CHUNG , JOSEPH LIU and SUI-FU TSAI "Inventory
Systems for Deteriorating Items Talking Account of Time Value "
Eng . Opt . Vol . 27 pp. 303-320 (1997) .
5. James H . Perry " Lead Time Management : Private and Public S-
ector Practice " Journal of Purchasing and Materials Management
pp. 2-7 (1990) .
6. Raafat , F . " Survey of Literature on Continuously Deteriorating
Inventory Model " J . Opl . Res . Soc . 42(1) , pp.27-37 (1991) .
7. Covert , R . P . and Philip , G.C . "An EOQ Model for Items with
Weibull Distribution Deterioration" AIIE Trans . 5 , pp. 323-326
(1973) .
8. Dave , U . and Patel , L . K ."Inventory Policy Model for Deterio-
rating Items with Time Proportional Demand" J . Opl . Res . Soc .
32 , pp. 137-142 (1981) .
9. Ching-Jong Liao and Chih-Hsiung Shyu "An Analytical Determin-
ation of Lead Time with Normal Demand" J . of Operations & Pro-
duction Management. Vol . 11 No . 9 pp.72-78(1991) .
10. D. W. MAGSON "Stock Control When the Lead Time Cannot be
Considered Constant" J. opl. Res. Soc. Vol. 30 No. 4 pp. 317-322
(1989) .
11. LIANG-YUH OUYANG , NENG-CHE YEH and KUN-SHAN
WU "Mixture Inventory Model with Backorders and Lost Sales for
Variable Lead Time" J. Opl. Res. Soc. Vol. 47 N0. 6 pp. 829-832 (1
996) .
12. LIANG-YUH OUYANG and KUN-SHAN WU "Mixture Invento-
ry Model Involving Variable Lead Time with a Service Level Con-
straint" Computers Ops. Res. Vol. 24 No. 9 pp. 875-882 (1997) .
13. Robert R. Trippi "A Present Value of The EOQ Problem" Decision
SCIENCE pp. 30-35 (1984) .
14. T. K. Datta and A. K. Pal "Effects of Inflation and Time -Value of
Money on an Inventory Model with Linear Time-Dependent Dema-
nd Rate and Shortages" European J. of Opl. Res. 52 pp. 326-333 (1
991) .
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