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| Икономично количество за поръчка (EOQ)× | Модел на вестникар× | |
|---|---|---|
| Област | Изследване на операциите | Изследване на операциите |
| Семейство | Regression model | Regression model |
| Година на възникване≠ | 1913 | 1951 |
| Създател≠ | Ford W. Harris | Arrow, Harris & Marschak |
| Тип≠ | Deterministic inventory optimization model | Stochastic single-period inventory optimization |
| Основополагащ източник≠ | Harris, F. W. (1913/1990). How many parts to make at once. Operations Research, 38(6), 947–950 (reprint). DOI ↗ | Arrow, K. J., Harris, T., & Marschak, J. (1951). Optimal inventory policy. Econometrica, 19(3), 250–272. DOI ↗ |
| Други названия | Wilson EOQ Model, Harris-Wilson Model, Optimal Lot Size Model, Ekonomik Sipariş Miktarı | Newsboy Model, Single-Period Inventory Model, Christmas Tree Problem, Gazete Satıcısı Modeli |
| Свързани | 3 | 3 |
| Резюме≠ | 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. | The Newsvendor Model is a single-period stochastic inventory optimization framework that determines the profit-maximizing order quantity when demand is uncertain and unsold units cannot be carried forward. Formally introduced by Arrow, Harris, and Marschak (1951) in their foundational work on optimal inventory policy, the model balances the cost of ordering too much (overage) against the cost of ordering too little (underage) to yield a closed-form optimality condition known as the critical ratio. |
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