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- Title
Inventory Positioning/Partitioning for Backorders Optimization for a Class of Multi-Echelon Inventory Problems.
- Authors
Rogers, David F.; Tsubakitani, Shigeru
- Abstract
Inventory management has undergone significant philosophical changes in recent decades such as the advent of the zero inventory concept. However, as attractive as the concept of minimal inventories may be, it is often unrealistic in application. Attention to basic features of inventory control systems such as order quantities, base stock levels, and reorder points remain crucial to ensure customer service at minimal cost. A nonlinear optimization model for determining base stock levels in a multi-echelon inventory network is presented. Lagrangian relaxation results in (1) newsboy-style relations that provide the optimal solutions, and (2) instantaneous shadow prices for the budget constraint. Sensitivity analysis of this model will facilitate making decisions concerning the desired investment in inventory for the entire system. This model may be solved on standard nonlinear programming software and is generalizable to problems in both production and distribution settings.
- Subjects
INVENTORY control; MATHEMATICAL optimization; NONLINEAR programming; INVENTORIES; DECISION making; PRODUCTION management (Manufacturing); PHYSICAL distribution of goods
- Publication
Decision Sciences, 1991, Vol 22, Issue 3, p536
- ISSN
0011-7315
- Publication type
Article
- DOI
10.1111/j.1540-5915.1991.tb01280.x