Optimal inventory policy for two substitutable products with customer service objectives

Xu Chen, Youyi Feng, Matthew F. Keblis, Jianjun Xu*

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We consider a firm facing stochastic demand for two products with downward, supplier-driven substitution and customer service objectives. We assume both products are perishable or prone to obsolescence, hence the firm faces a single period problem. The fundamental challenge facing the firm is to determine in advance of observing demand the profit maximizing inventory levels of both products that will meet given service level objectives. Note that while we speak of inventory levels, the products may be either goods or services. We characterize the firm's optimal inventory policy with and without customer service objectives. Results of a numerical study reveal the benefits obtained from substitution and show how optimal inventory levels are impacted by customer service objectives.

Original languageEnglish
Pages (from-to)76-85
Number of pages10
JournalEuropean Journal of Operational Research
Volume246
Issue number1
DOIs
Publication statusPublished - 1 Oct 2015

Keywords

  • Capacity management
  • Customer service objective
  • Inventory management
  • Perishability
  • Substitution

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