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1. Inventory Management
2. 2 Inventory
3. 3 Food Inventory: LG Refrigerator
4. 4 Types of Inventory
5. 5 Reasons to Hold Inventory
6. 6 Inventory Costs
7. 7 Inventory Control Systems
8. 8 How much to order? We want to balance the
9. 9 How much to order? We can calculate the optimal order quantity using the Economic Order Quantity, also known as the.
10. 10 Economic Order Quantity (EOQ) Models: Assumptions
11. 11 The Inventory Order Cycle
12. 12 The Inventory Order Cycle
13. 13 EOQ Cost Model
14. 14 EOQ Cost Model
15. 15 EOQ Cost Model
16. 16 EOQ Cost Model
17. 17 EOQ Cost Model
18. 18 EOQ: Spaghetti
19. 19 EOQ: What about buying more than spaghetti
20. 20 Example: Pizza-to-You Simple Business Model: Buy from Costco, store, bake, and deliver as needed. Determine optimal inventory levels and costs.
Demographic study shows local pizza demand is 160 pizzas/week
Co - cost of placing order = $3.50 per order
Cc - per-unit carrying cost = $0.30 per pizza
D - weekly demand = 160
Q - order quantity
21. 21 Pizza-to-You: Case 1 Co = $3.50 per order
Cc = $0.30 per pizza
D = 160 pizzas/week
Optimal Order Quantity
22. 22 Pizza-to-You: Case 2Reduced Order Cost ($3.50 ? $0.35) Co = $0.35 per order
Cc = $0.30 per pizza
D = 160
Optimal Order Quantity:
23. 23 Card Shop
24. 24 Card Shop
25. 25 Gas Station
26. 26 Gas Station
27. 27 Gas Station
28. 28 EOQ: Economic Order Quantity EOQ balances the cost of placing an order against the cost of storing product in inventory
The cost of storing a product in inventory can include warehouse costs, shipping costs, and cost of capital tied up in inventory
Notice that nowhere did the cost of the merchandise being sold enter into the equations
EOQ is vitally important in any retail business and most businesses where stocked items are managed
29. 29 Safety Stocks
30. 30 Variable Demand with a Reorder Point
31. 31 Reorder Point with a Safety Stock