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Title On the stationary stochastic response of an order-constrained inventory system
ID_Doc 19609
Authors Wang, X; Disney, SM; Ponte, B
Title On the stationary stochastic response of an order-constrained inventory system
Year 2023
Published European Journal Of Operational Research, 304.0, 2
DOI 10.1016/j.ejor.2022.04.020
Abstract We investigate the stochastic response of a base stock inventory system where the order quantity is either upper-or lower-constrained. This system can represent many real-world settings: forbidden re-turns, minimum order quantities, and capacity constraints for example. We show that this problem can be translated into a stopping time problem where the distributions of orders and inventory can be repre-sented by a countably infinite mixture of truncated and convoluted demand distributions. This result can be extended to the cases of arbitrary lead time and auto-correlated demand. A state space algorithm is developed to approximate the first-and second-order moments of the order quantity and inventory level. Via a numerical analysis, we investigate the performance of the approximation, as well as the operational and economic impact of the order constraint. In particular, the constraint impacts order and inventory variances via different combinations of the mixture and truncation effects. We show how tuning the con-straint can improve the operational and financial performance of the inventory system by acting as a smoothing mechanism.(c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ )
Author Keywords Inventory; Constraint; Stochastic response; Base stock policy
Index Keywords Index Keywords
Document Type Other
Open Access Open Access
Source Science Citation Index Expanded (SCI-EXPANDED)
EID WOS:000863157000012
WoS Category Management; Operations Research & Management Science
Research Area Business & Economics; Operations Research & Management Science
PDF https://doi.org/10.1016/j.ejor.2022.04.020
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