Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/100600
DC FieldValueLanguage
dc.contributor.authorAfonso, Ricardo-
dc.contributor.authorGodinho, Pedro-
dc.contributor.authorCosta, João Paulo-
dc.date.accessioned2022-07-06T10:05:16Z-
dc.date.available2022-07-06T10:05:16Z-
dc.date.issued2022-
dc.identifier.issn19232926pt
dc.identifier.issn19232934pt
dc.identifier.urihttps://hdl.handle.net/10316/100600-
dc.description.abstractReal life inventory lot sizing problems are frequently challenged with the need to order different types of items within the same batch. The Joint Replenishment Problem (JRP) addresses this setting of coordinated ordering by minimizing the total cost, composed of ordering (or setup) costs and holding costs, while satisfying the demand. The complexity of this problem increases when some or all item types are prone to obsolescence. In fact, the items may experience an abrupt decline in demand because they are no longer needed, due to rapid advancements in technology, going out of fashion, or ceasing to be economically viable. This article proposes an extension of the Joint Replenishment Problem (JRP) where the items may suddenly become obsolete at some time in the future. The model assumes constant demand and the items’ lifetimes follow independent negative exponential distributions. The optimization process considers the time value of money by using the expected discounted total cost as the minimization criterion. The proposed model was applied to some test cases, and sensitivity analyses were performed, in order to assess the impact of obsolescence on the ordering policy. The increase in the obsolescence risk, through the progressive increase of the obsolescence rates of the item types, determines smaller lot sizes on the ordering policy. The increase in the discount rate causes smaller quantities to be ordered as well.pt
dc.language.isoengpt
dc.relationUIDB/05037/2020pt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectInventory lot sizingpt
dc.subjectJoint replenishment problempt
dc.subjectObsolescencept
dc.titleDiscounted costs and obsolescence with the Joint replenishment problempt
dc.typearticle-
degois.publication.firstPage51pt
degois.publication.lastPage66pt
degois.publication.issue1pt
degois.publication.titleInternational Journal of Industrial Engineering Computationspt
dc.peerreviewedyespt
dc.identifier.doi10.5267/j.ijiec.2021.8.002pt
degois.publication.volume13pt
dc.date.embargo2022-01-01*
uc.date.periodoEmbargo0pt
item.openairetypearticle-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.grantfulltextopen-
item.fulltextCom Texto completo-
crisitem.author.researchunitCeBER – Centre for Business and Economics Research-
crisitem.author.orcid0000-0001-7774-3847-
crisitem.author.orcid0000-0003-2247-7101-
crisitem.author.orcid0000-0002-7404-0772-
Appears in Collections:I&D CeBER - Artigos em Revistas Internacionais
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This item is licensed under a Creative Commons License Creative Commons