系統識別號 | U0002-2706201112265700 |
---|---|
DOI | 10.6846/TKU.2011.00962 |
論文名稱(中文) | 允許延遲付款下品質有瑕疵及檢驗錯誤之貨品的最適訂購策略的研究 |
論文名稱(英文) | A study of optimal ordering policy for items with imperfect quality and inspection errors under permissible delay in payments |
第三語言論文名稱 | |
校院名稱 | 淡江大學 |
系所名稱(中文) | 統計學系碩士班 |
系所名稱(英文) | Department of Statistics |
外國學位學校名稱 | |
外國學位學院名稱 | |
外國學位研究所名稱 | |
學年度 | 99 |
學期 | 2 |
出版年 | 100 |
研究生(中文) | 宋柏毅 |
研究生(英文) | Pao-Yi Soong |
學號 | 698650149 |
學位類別 | 碩士 |
語言別 | 繁體中文 |
第二語言別 | |
口試日期 | 2011-06-08 |
論文頁數 | 96頁 |
口試委員 |
指導教授
-
張春桃
委員 - 歐陽良裕 委員 - 鄭美娟 |
關鍵字(中) |
存貨 經濟訂購量 延遲付款 瑕疵品 檢驗錯誤 |
關鍵字(英) |
Inventory Economic Order Quantity Permissible Delay in Payments Imperfect Quality Items Inspection Errors |
第三語言關鍵字 | |
學科別分類 | |
中文摘要 |
存貨管理是一個企業成敗的重要關鍵之一,許多企業都希望擬定一個最適 訂購策略來達成最大的利潤賺得。在傳統的經濟訂購量模型假設零售商收到貨 品的同時必須付清貨款。而在實務上,供應商為了激勵零售商的訂購量,往往 會提供一段延遲付款時間給予零售商;對於零售商而言,不必負擔大量的資金 積壓,還可利用已銷售的收入去賺得利息。其次,傳統的經濟訂購量模型並沒 有將進貨物品中品質有瑕疵的情況納入考慮,這些瑕疵品非但不能賺取利潤, 反而會造成額外的成本支出。另外,檢驗貨品的過程中,可能會因為人為、技 術或環境等因素造成貨品檢驗錯誤,產生額外的處理成本以及利潤損失。這些 狀況均存在於現實的存貨管理中,也是決策者需面對及解決的問題,亦是值得 探討的議題。針對零售商的存貨管理問題,本論文將在存貨模型中,加入延遲 付款、貨品品質有瑕疵與檢驗錯誤等議題,探討這些議題對存貨管理的影響; 同時提出零售商在面對不同情況下,使得每年總利潤為最大的最適訂購策略。 本論文研究兩個存貨模型,文中包含四個章節。第一章為緒論,包括研究 動機與目的、相關文獻探討及本文結構。第二章探討當供應商允許延遲付款且 貨品品質有瑕疵的情況下,零售商的最適訂購策略。第三章除延續第二章的概 念外,將檢驗錯誤的議題納入存貨模型中,研究檢驗錯誤對訂購策略之決定的 影響。針對兩模型分別找出最適解,並運用數值範例來說明模型的求解與應用 以及敏感度分析。最後,第四章提出本研究的結論和未來的研究方向。 |
英文摘要 |
In the traditional economic order quantity (EOQ) model, it is tacitly assumes that a retailer must pay for the items as soon as the items are received, and all items offered by a supplier are perfect quality items. However, in real business transactions, it is a common situation that a retailer receives some imperfect quality items from a lot, and additional costs are occurred by these imperfect quality items. In addition, a supplier may provide a permissible delay in payments to a retailer in order to encourage the retailer to increase order quantities. During the trade credit period, the account is not settled, and generated sales revenue is deposited in an interest bearing account. Moreover, the inspection errors due to the mistakes by human, techniques of inspection or environment are incurred and the penalty costs occur. In this thesis, a permissible delay in payments, defective items and inspection errors are taken into account when the optimal ordering policy is determined for maximizing retailer’s total profit. This thesis proposes two inventory mathematical models for the inventory system under trade credit. In chapter 2, we formulate an EOQ model with imperfect quality items when the supplier provides a permissible delay in payments. In chapter 3, we discuss an EOQ model with imperfect quality items and inspection errors when the supplier offers a permissible delay in payments. For each model, some theorems are established to find the optimal ordering policy, numerical examples are given to illustrate the solution procedure and sensitivity analysis is reported. Finally, chapter 4 provides the conclusions of this thesis and topics for future research. |
第三語言摘要 | |
論文目次 |
目錄 表目錄 III 圖目錄 IV 第一章 緒論 1 1.1 研究動機與目的 1 1.2 相關文獻探討 3 1.2.1 延遲付款 3 1.2.2 品質有瑕疵 5 1.2.3 檢驗錯誤 7 1.3 本文結構 8 第二章 延遲付款下品質有瑕疵之貨品的最適訂購策略 9 2.1 前言 9 2.2 符號與假設 11 2.3 模型的建立 13 2.4 模型的求解 22 2.5 最佳解的決定 30 2.6 數值範例與敏感度分析 32 2.7 小結 39 第三章 延遲付款下品質有瑕疵及檢驗錯誤之貨品 的最適訂購策略 40 3.1 前言 40 3.2 符號與假設 41 3.3 模型的建立 43 3.4 模型的求解 55 3.5 最佳解的決定 67 3.6 數值範例與敏感度分析 72 3.7 小結 81 第四章 結論 83 4.1 主要研究成果 83 4.2 未來研究方向 85 附錄 87 附錄一. 87 附錄二. 89 參考文獻 91 表目錄 表2-1:M變動下,最佳解的數值結果 33 表2-2:Ip變動下,最佳解的數值結果 34 表2-3:Ie變動下,最佳解的數值結果 35 表2-4:p變動下,最佳解的數值結果 36 表2-5:K變動下,最佳解的數值結果 37 表2-6:h變動下,最佳解的數值結果 38 表3-1:M變動下,最佳解的數值結果 73 表3-2:Ip變動下,最佳解的數值結果 75 表3-3:Ie變動下,最佳解的數值結果 76 表3-4:p變動下,最佳解的數值結果 77 表3-5:K變動下,最佳解的數值結果 78 表3-6:h變動下,最佳解的數值結果 78 表3-7:p1變動下,最佳解的數值結果 79 表3-8:p2變動下,最佳解的數值結果 80 圖目錄 圖2-1:Salameh and Jaber (2000) 之存貨系統 14 圖2-2:M≦t1≦T時之存貨水準、利息賺得及利息支付示意圖 15 圖2-3:t1≦M≦T時之存貨水準、利息賺得及利息支付示意圖 17 圖2-4:t1≦T≦M時之存貨水準及利息賺得示意圖 19 圖3-1:Khan et al. (2011) 之存貨系統 45 圖3-2:M≦t1≦T時之存貨水準、利息賺得及利息支付示意圖 46 圖3-3:t1≦M≦T時之存貨水準、利息賺得及利息支付示意圖 48 圖3-4:T≦M≦T+t1時之存貨水準及利息賺得示意圖 50 圖3-5:T+t1≦M時之存貨水準及利息賺得示意圖 52 |
參考文獻 |
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