以現值觀點探討存貨中含有不良品之最佳存貨模型

Study on the Optimal Inventory Modelling Including Inferior Goods by the Present Value

賴柏熊(Po-Hsiung Lai)

指導教授 ： 林賜德

中原大學/理學院/應用數學研究所/碩士(2010年)

https://doi.org/10.6840/cycu201000493

摘要

在今日全球化的高度競爭下，如何有效降低企業成本及增加產品價值是提高企業競爭力的重要課題。本研究以降低成本探討現值觀點追求含有不良品之最佳存貨模式，並且利用數學分析方法得到最佳訂購週期時間與最佳存貨成本，符合最適經濟效益，創造最佳價值。
並且將其與單位時間化探討單一週期含有不良品之存貨模式作比較。由本研究可知，以現值觀點探討永續經營之存貨模式其最佳週期時間比單位時間化探討單一週期之存貨模式之最佳週期時間較短，並且以現值觀點探討永續經營之存貨模式其單一週期單位時間內之總成本比單位時間化探討單一週期之存貨模式之總成本也來得低。故此，產業可採取以現值觀點分析永續經營含有不良品之生產存貨模式，週期時間較短，降低其生產成本，增加其利潤，有助於產業之經營規劃，更可做為產業生產決策的重要參考指標。

關鍵字

不良品 ； 存貨 ； 現值

並列摘要

In this highly global competition ,how to reduce enterprise’s cost and raise the value of goods,has become the key consideration to improve an enterprise’s competitiveness in the market. Here we used the present value method to research the target of reducing the cost of goods.In order to minimize cost,a set of optimized inventory model including inferior goods is designed and defined by the way of agreement and contract.Using the method of mathematical analysis, we found the optimal order time and the optimal inventory cost.The research not only conformed to the optimal economic cost but also raised the value of the enterprise.
Compared this research with the optimal inventory modelling including inferior goods on one cycle using average cost.In this paper,the optimal order time of the optimal inventory modelling including inferior goods by the present value was shorter than the other.But the optimal inventory cost of the optimal inventory modelling including inferior goods by the present value was less than the other.Therefore the enterprise could use the optimal inventory modelling including inferior goods by the present value.Though the optimal order time was shorter,the optimal inventory cost was lower.The research not only improved an enterprise's competitiveness but also became the key consideration to determine the decision of the enterprise.

並列關鍵字

inferior goods ； inventory ； the present value

參考文獻

[4]林清河,2006年,”物料管理”,華泰文化事業股份有限公司.

[2]孫佩良,2007年, ＂以淨現值觀點探討回收性產品之最佳存貨模式＂,私立中原大學企管系研究所論文.

[7]Adam,E.E.,R.J.Ebert.,1982,”Production and Operations Management(2th

[8]Chung Wen-Jen and Lin Shy-Der,1995,”Evaluating Investment in Inventory Policy under A Net Present Value Framework”,The Engineering Economist,Vol.40,no.4.

[9]Cheng T.C.E.,1991,”An Economic order Quantity Model with Demand Dependent Unit Production Cost and Imperfect Production Process”,IIE Transactions,vol.23,pp.23-28.