A sample-path approach to the optimality of echelon order-up-to policies in serial inventory systems

摘要

We present a new proof of the optimality of echelon order-up-to policies in serial inventory systems, first proved by Clark and Scarf. Our proof is based on a sample-path analysis as opposed to the original proof based on dynamic programming induction. (c) 2008 Elsevier B.V. All rights reserved.