An inventory system for perishable items with by-products

David Perry, Wolfgang Stadje

Research output: Contribution to journalArticlepeer-review


We present models for inventory systems with perishable commodities (PISs) in which the items are not scrapped after reaching their maximum lifetime but are transferred to a second PIS where they are used to satisfy another random stream of demands. We determine the steady-state distribution of the virtual death processes in the various models and point out connections to certain queueing and darn models.

Original languageEnglish
Pages (from-to)287-300
Number of pages14
JournalMathematical Methods of Operations Research
Issue number2
StatePublished - 2000


  • By-product
  • Modified m/m/1 queue
  • Perishable inventory system
  • Stationary distribution
  • Virtual death process

ASJC Scopus subject areas

  • Software
  • General Mathematics
  • Management Science and Operations Research


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