《供应链系统设计与管理》课程教学课件(讲稿,研究生)Chapter 2 风险分担与集中式库存控制 Risk Pooling & Centralized inventory control

供应链系统库存管理风险分担与集中式库存控制RiskPooling&Centralizedinventorycontrol主讲王长琼武汉理工大学物流工程学院
供应链系统库存管理 1 风险分担与集中式库存控制 Risk Pooling & Centralized inventory control 主讲 王长琼 武汉理工大学 物流工程学院

集中式库存与风险分担学习内容和自标(1)与不确定性需求有关的几条原则(2)风险分担的案例(3)集中系统与分散系统的库存比较(4)集中系统与分散系统的权衡
2 集中式库存与风险分担 学习内容和目标 (1)与不确定性需求有关的几条原则 (2)风险分担的案例 (3)集中系统与分散系统的库存比较 (4)集中系统与分散系统的权衡

(1)与不确定性需求有关的几条原则Aggregated(汇聚的)forecastis moreaccurateDemandvariabilityisreduced if one aggregatesdemand across locations.- High demand from one customer may be offset bylow demand from another.Reduction invariabilityallowsa decreaseinsafetystock and thereforereduces average inventory/Standarddeviation,oSS=ZαXOL/Coefficientofvariation,cv=o/u3
(1)与不确定性需求有关的几条原则 • Aggregated(汇聚的) forecast is more accurate • Demand variability is reduced if one aggregates demand across locations. - High demand from one customer may be offset by low demand from another. • Reduction in variability allows a decrease in safety stock and therefore reduces average inventory. 3 Z L ss Standard deviation, Coefficient of variation, cv = /

(2) ACME: Risk Pooling CaseElectronic equipment manufacturer anddistributor2warehouses fordistributioninMassachusettsand New Jersey (partitioning the northeastmarket into two regions) Each retailer (Customer) is assigned to a singlemarket (warehouse)Warehouses receive materials from ChicagoCurrentrule:97%servicelevel(3%probabilityofstock-out)
(2) ACME: Risk Pooling Case • Electronic equipment manufacturer and distributor • 2 warehouses for distribution in Massachusetts and New Jersey (partitioning the northeast market into two regions) • Each retailer (Customer) is assigned to a single market (warehouse) • Warehouses receive materials from Chicago • Current rule: 97 % service level (3 % probability of stock-out) 4

Current distributionsystems:WarehouseOneMarket OneMassachusettsSupplier.ChicagoWarehouseTwoMarket TwoNew JerseyProblems:-over7years ago-1,500products-10000customersinNortheastConsidering an alternative logistics strategy
Market Two Current distribution systems: Supplier Warehouse One Warehouse Two Market One •Chicago Massachusetts New Jersey Problems: - over 7 years ago -1,500 products -10,000 customers in Northeast. Considering an alternative logistics strategy

New ldeaReplacethe2warehouseswithasinglewarehouseThe same service level 97 %Delivery lead times may increaseWhy?Butmaydecreasetotalinventoryconsiderably.i.e.CentralizeddistributionsystemMarketOneWarehouseSupplierMarket TwoSomesuitableplacebetweenParamusandNewton6
New Idea • Replace the 2 warehouses with a single warehouse • The same service level 97 % • Delivery lead times may increase • But may decrease total inventory considerably. Why? 6 Some suitable place, between Paramus and Newton i.e. Centralized distribution system

(3)Compare thetotalinventoriesof twosystemsHistoricalDataPRODUCTA12374568Week3730334538551858Massachusetts4635414026481855NewJersey78798078788136113TotalPRODUCTB23167845Week33003001Massachusetts24303100New Jersey02630323Total
Historical Data PRODUCT A Week 1 2 3 4 5 6 7 8 Massachusetts 33 45 37 38 55 30 18 58 New Jersey 46 35 41 40 26 48 18 55 Total 79 80 78 78 81 78 36 113 PRODUCT B Week 1 2 3 4 5 6 7 8 Massachusetts 0 3 3 0 0 1 3 0 New Jersey 2 4 3 0 3 1 0 0 Total 2 6 3 0 3 2 3 0 (3) Compare the total inventories of two systems

Compare thetotalinventories of two systemsSummaryof Historical DatagofStatisticsProductAverageCoefficientDemandDemandof VariationAMassachusetts39.313.20.34BMassachusetts1.361.211.125ANewJersey38.612.00.31BNewJersey1.251.581.26ATotal(aggreg.)77.920.710.27BTotal(aggreg.)1.90.812.375LT=1 week
Summary of Historical Data Statistics Product Average Demand of Demand Coefficient of Variation Massachusetts A 39.3 13.2 0.34 Massachusetts B 1.125 1.36 1.21 New Jersey A 38.6 12.0 0.31 New Jersey B 1.25 1.58 1.26 Total (aggreg.) A 77.9 20.71 0.27 Total (aggreg.) B 2.375 1.9 0.81 Compare the total inventories of two systems LT=1 week

InventoryLevels (bycontinuouspolicy)%MaxAvgQROPProdAVGSafetyreducInv.uctDuringStockLTtionA9139.365132197Massach.25.082914B4251.1252.58Massach.19388A6222.8131NewJ38.61529B3524NewJ1.25A118186304132Centr.77.939.3536%B6332.3753.61Centr.392045%Innewsystem,c.v.issmaller,sovariabilityisreducedAVGSS
Inventory Levels (by continuous policy) Prod uct AVG During LT Safety Stock ROP Q Massach. A 39.3 25.08 65 132 Massach. B 1.125 2.58 4 25 New J A 38.6 22.8 62 131 New J B 1.25 3 5 24 Centr. A 77.9 39.35 118 186 Centr. B 2.375 3.61 6 33 Max Avg Inv. % reduc tion 197 91 29 14 193 88 29 15 304 132 36% 39 20 45% In new system, c.v. is smaller, so variability is reduced, ss AVG

SavingsinInventoryAverage inventoryforProductA:- At NJ warehouse is about 88 units-AtMAwarehouseisabout91units- In the centralized warehouse is about 132 units- Average inventory reduced by about 36 percentAverageinventoryforProductB:-At NJ warehouse is about 15 units-AtMAwarehouseisabout14units-ln the centralized warehouse is about 20 units-Average inventory reduced by about 45percent% of reduction of inventory A= (91+88-132)/132= 36%%ofreductionofinventoryB=(14+15-20)/20=45%10
Savings in Inventory • Average inventory for Product A: – At NJ warehouse is about 88 units – At MA warehouse is about 91 units – In the centralized warehouse is about 132 units – Average inventory reduced by about 36 percent • Average inventory for Product B: – At NJ warehouse is about 15 units – At MA warehouse is about 14 units – In the centralized warehouse is about 20 units – Average inventory reduced by about 45 percent 10 % of reduction of inventory A = (91+88-132)/132 = 36% % of reduction of inventory B = (14+15-20)/20=45%
按次数下载不扣除下载券;
注册用户24小时内重复下载只扣除一次;
顺序:VIP每日次数-->可用次数-->下载券;
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)Chapter 5 Bullwhip effect & the value of information.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)Chapter 11 Coordinated Product and Supply Chain Design.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)Lecture 10 Procurement and Outsourcing Strategies.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)供应链管理新趋势.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)Lecture 8 Strategic Alliances and VMI.pdf
- 《供应链系统设计与管理》课程教学资源(案例)2.1 某空调生产企业的供应链库存优化配置方法.pdf
- 《供应链系统设计与管理》课程教学资源(案例)3.1 Efes啤酒公司选址决策案例.pdf
- 《供应链系统设计与管理》课程教学资源(案例)1.1(b)WalMart SCM.pdf
- 《供应链系统设计与管理》课程教学资源(案例)1.1(a)WalMart SCM.pdf
- 《供应链系统设计与管理》课程教学资源(案例)5.1 巴里拉公司牛鞭效应案例.pdf
- 《供应链系统设计与管理》课程教学资源(案例)6.1 浙江省新华书店供应链整合案例.pdf
- 《供应链系统设计与管理》课程教学资源(案例)3.2 三环专用车公司分销中心选址案例.pdf
- 《供应链系统设计与管理》课程教学资源(案例)3.3 吉列公司配送网络改进.pdf
- 《供应链系统设计与管理》课程教学资源(案例)9.2 戴姆勒公司的电子采购战略.pdf
- 《供应链系统设计与管理》课程教学资源(案例)8.1 战略联盟 沃尔玛-宝洁VMI供应链合作案例.pdf
- 《供应链系统设计与管理》课程教学资源(案例)7.1 宝洁公司的仓储配送一体化战略.pdf
- 《供应链系统设计与管理》课程教学资源(案例)9.1 采购与外包风险案例- 波音787梦幻客机的问题.pdf
- 《供应链系统设计与管理》课程教学资源(案例)10.3 日本大地震暴露全球供应链风险.pdf
- 《供应链系统设计与管理》课程教学资源(案例)10.1 韩都衣舍的QR -供应链风险管理案例.pdf
- 《供应链系统设计与管理》课程教学资源(案例)10.2 outsourcing and its risk Boeing 787 Case.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)Chapter 6 Supply Chain Integration What is integration.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)Chapter 4 Supply Contracts.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)供应链系统安全库存及其影响因素.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)最佳周期服务水平CSL的确定.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)周期检查补货策略下的安全库存.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)连续检查补货策略下的安全库存.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)Chapter 2 Inventory Management and Risk Pooling.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)Lecture 0 Overview 供应链系统设计与管理 Designing and Managing the Supply Chain.pdf
- 《供应链系统设计与管理》课程教学课件(讲稿,研究生)Lecture 1 Introduction to supply chain management(SCM).pdf
- 《供应链系统设计与管理》课程教学大纲 Designing and managing Supply Chain System(研究生).pdf
- 《供应链系统设计与管理》课程授课教案(讲义)Chapter 13(Lecture 12)Smart Pricing.pdf
- 《供应链系统设计与管理》课程授课教案(讲义)Chapter 08(Lecture 10)Strategic Alliances and VMI.pdf
- 《供应链系统设计与管理》课程授课教案(讲义)Chapter 09(Lecture 11)Procurement and Outsourcing Strategies.pdf
- 《供应链系统设计与管理》课程授课教案(讲义)Chapter 06(Lecture 9)Supply chain integration.pdf
- 《供应链系统设计与管理》课程授课教案(讲义)Chapter 05(Lecture 8)Bullwhip effect &the value of information.pdf
- 《供应链系统设计与管理》课程授课教案(讲义)Chapter 03(Lecture 6)SC network design and planning.pdf
- 《供应链系统设计与管理》课程授课教案(讲义)Chapter 02(Lecture 5)Risk Pooling(Centralized system).pdf
- 《供应链系统设计与管理》课程授课教案(讲义)Chapter 04(Lecture 7)supply contract.pdf
- 《供应链系统设计与管理》课程授课教案(讲义)Chapter 02(Lecture 2)Introduction to Inventory management.pdf
- 《供应链系统设计与管理》课程授课教案(讲义)Chapter 02(Lecture 3)Single Stage Inventory Control.pdf