Allocation under a general substitution structure

Yulia Tseytlin and H. Sebastian Heese

European Journal of Operational Research, 2019, vol. 277, issue 2, 492-506

Abstract: We develop a novel solution approach for the single-period multi-product inventory allocation problem with general substitution structure. First, we construct an initial allocation sequence and present conditions for existence of a Monge sequence, implying optimality of a greedy solution. We prove that the greedy allocation along the initial sequence is optimal even if no Monge sequence exists, when in the solution all demand is satisfied and all inventory is used. For all other cases, we develop a correction algorithm and prove optimality of the resulting allocation. The worst-case computational complexity of our solution is superior to existing algorithms for the structurally related transportation problem.

Keywords: Inventory; Substitution; Allocation; Transportation problem; Monge sequences (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ejores:v:277:y:2019:i:2:p:492-506

DOI: 10.1016/j.ejor.2019.02.049

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