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	Modeller för säkerhetslager och påfyllningspunkter	Ekonomisk orderkvantitet (EOQ)
Ämnesområde	Operationsanalys	Operationsanalys
Familj	Regression model	Regression model
Ursprungsår	1998	1913
Upphovsperson	Silver, Pyke & Peterson	Ford W. Harris
Typ	Stochastic inventory control model	Deterministic inventory optimization model
Ursprungskälla	Silver, E. A., Pyke, D. F., & Peterson, R. (1998). Inventory Management and Production Planning and Scheduling (3rd ed.). Wiley. ISBN: 978-0-471-11947-0	Harris, F. W. (1913/1990). How many parts to make at once. Operations Research, 38(6), 947–950 (reprint).
Alias	Buffer Stock, Reserve Stock, Reorder-Point Model, Emniyet Stoğu	Wilson EOQ Model, Harris-Wilson Model, Optimal Lot Size Model, Ekonomik Sipariş Miktarı
Närliggande	3	3
Sammanfattning	Safety stock is an additional quantity of inventory held beyond expected demand during a replenishment lead time, designed to protect against stockouts caused by demand or supply uncertainty. Reorder-point models formalize this buffer by setting a trigger inventory level at which a new order is placed. Systematically developed within the stochastic inventory-control framework by Silver, Pyke, and Peterson (1998), the approach translates a desired customer-service level into a precise buffer quantity using the statistics of demand and lead-time variability.	The Economic Order Quantity (EOQ) is a classic deterministic inventory model that identifies the order quantity minimizing the sum of annual ordering and holding costs. Introduced by Ford W. Harris in 1913 and later popularized by R. H. Wilson, EOQ assumes constant demand, fixed cost parameters, and instantaneous replenishment. It remains the foundational benchmark for inventory management in manufacturing, retail, and supply chain contexts where demand is relatively stable and costs are well-characterized.