The Economic Order-Quantity (EOQ) Model

  • Leroy B. Schwarz
Part of the International Series in Operations Research & Management Science book series (ISOR, volume 115)

The economic order-quantity model considers the tradeoff between ordering cost and storage cost in choosing the quantity to use in replenishing item inventories. A larger order-quantity reduces ordering frequency, and, hence ordering cost/ month, but requires holding a larger average inventory, which increases storage (holding) cost/month. On the other hand, a smaller order-quantity reduces average inventory but requires more frequent ordering and higher ordering cost/month. The cost- minimizing order-quantity is called the Economic Order Quantity (EOQ). This chapter builds intuition about the robustness of EOQ, which makes the model useful for management decision-making even if its inputs (parameters) are only known to be within a range of possible values. This chapter also provides intuition about choosing an inventory-management system, not just an EOQ.


Order Quantity Demand Rate Average Inventory Economic Order Quantity Quantity Discount 
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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Leroy B. Schwarz

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