Computational Issues in an Infinite-Horizon, Multiechelon Inventory Model

摘要: Clark and Scarf Clark, A., H. Scarf. 1960. Optimal policies for a multi-echelon inventory problem. Mgmt. Sci.6 475-490. characterize optimal in two-echelon, two-location model. We extend their result to the infinite-horizon case both discounted average costs. The computations required are far easier than finite horizon Further simplification is achieved normal demands. also consider more interesting of multiple locations at lower echelon. show that, under certain conditions, this problem can be closely approximated by model with one such location. A rather simple computation thus yields near-optimal policy good approximation cost system.