2-1 Acme Risk Pooling Case Electronic equipment manufacturer and distributor 2 warehouses for distribution in New York and New Jersey (partitioning the.

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Presentation transcript:

2-1 Acme Risk Pooling Case Electronic equipment manufacturer and distributor 2 warehouses for distribution in New York and New Jersey (partitioning the northeast market into two regions) Customers (that is, retailers) receiving items from warehouses (each retailer is assigned a warehouse) Warehouses receive material from Chicago Current rule: 97 % service level Each warehouse operate to satisfy 97 % of demand (3 % probability of stock-out)

2-2 Replace the 2 warehouses with a single warehouse (located some suitable place) and try to implement the same service level 97 % Delivery lead times may increase But may decrease total inventory investment considerably. New Idea

2-3 Historical Data PRODUCT A Week Massachusetts New Jersey Total PRODUCT B Week Massachusetts New Jersey Total

2-4 Summary of Historical Data StatisticsProductAverage DemandStandard Deviation of Demand Coefficient of Variation MassachusettsA MassachusettsB New JerseyA New JerseyB TotalA TotalB

2-5 Inventory Levels ProductAverage Demand During Lead Time Safety StockReorder Point Q MassachusettsA MassachusettsB New JerseyA New JerseyB TotalA TotalB

2-6 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 43 percent

2-7 The higher the coefficient of variation, the greater the benefit from risk pooling The higher the variability, the higher the safety stocks kept by the warehouses. The variability of the demand aggregated by the single warehouse is lower The benefits from risk pooling depend on the behavior of the demand from one market relative to demand from another risk pooling benefits are higher in situations where demands observed at warehouses are negatively correlated Reallocation of items from one market to another easily accomplished in centralized systems. Not possible to do in decentralized systems where they serve different markets Critical Points