Pub Date : 1900-01-01DOI: 10.1504/ijir.2020.10028327
N. Prajwal, K. P. Lakshmi, Mrudula Amirapu, H. Nischitha, R. Eshwari
{"title":"RFID Based Smart Inventory System Suitable for All Businesses","authors":"N. Prajwal, K. P. Lakshmi, Mrudula Amirapu, H. Nischitha, R. Eshwari","doi":"10.1504/ijir.2020.10028327","DOIUrl":"https://doi.org/10.1504/ijir.2020.10028327","url":null,"abstract":"","PeriodicalId":113309,"journal":{"name":"International Journal of Inventory Research","volume":"84 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123282220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1504/IJIR.2021.10036339
T. S. Vaughan
{"title":"Application of a dynamic inventory policy to spare parts subject to age replacement","authors":"T. S. Vaughan","doi":"10.1504/IJIR.2021.10036339","DOIUrl":"https://doi.org/10.1504/IJIR.2021.10036339","url":null,"abstract":"","PeriodicalId":113309,"journal":{"name":"International Journal of Inventory Research","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125471966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1504/IJIR.2016.10002885
Y. Gerchak
In a decentralised supply chain, the presence of initial inventory at the retailer is believed to cause the manufacturer to set a lower wholesale price than otherwise. But is such always the case? The importance of that question also derives from a multi-period setting where the manufacturer chooses a wholesale price in each period based on initial inventory at retailer. As the wholesale price is decreasing in inventory level, goes the argument, the retailer will 'overstock', referred to as holding 'strategic inventory'. We show that the optimal wholesale price may increase in initial inventory. We initially assume fixed retail price, and later consider a model with price-sensitive demand. We then outline other price-sensitive models based on different demand functions.
{"title":"How does wholesale price depend on initial inventory at retailer","authors":"Y. Gerchak","doi":"10.1504/IJIR.2016.10002885","DOIUrl":"https://doi.org/10.1504/IJIR.2016.10002885","url":null,"abstract":"In a decentralised supply chain, the presence of initial inventory at the retailer is believed to cause the manufacturer to set a lower wholesale price than otherwise. But is such always the case? The importance of that question also derives from a multi-period setting where the manufacturer chooses a wholesale price in each period based on initial inventory at retailer. As the wholesale price is decreasing in inventory level, goes the argument, the retailer will 'overstock', referred to as holding 'strategic inventory'. We show that the optimal wholesale price may increase in initial inventory. We initially assume fixed retail price, and later consider a model with price-sensitive demand. We then outline other price-sensitive models based on different demand functions.","PeriodicalId":113309,"journal":{"name":"International Journal of Inventory Research","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126162825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1504/ijir.2023.10054788
Yan Lang, Kay-Yut Chen, Yan Wu
{"title":"Learning under the inventory problem of economic order quantity: a behavioural study","authors":"Yan Lang, Kay-Yut Chen, Yan Wu","doi":"10.1504/ijir.2023.10054788","DOIUrl":"https://doi.org/10.1504/ijir.2023.10054788","url":null,"abstract":"","PeriodicalId":113309,"journal":{"name":"International Journal of Inventory Research","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125612025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1504/IJIR.2016.10003376
A. Bozorgi-Amiri, Roshanak Akram, A. Taleizadeh, Abolghasem Yousefi-Babadi
Nowadays, designing a supply chain considering customers' satisfaction is a practical field in supply chain area. In this paper, a multi-objective location-inventory model in a three-echelon supply chain for a perishable product with a fixed lifetime is extended where manufacturers, distributors and customers are the members of the chain. One of the most important factors for supplying perishable products is the availability time for the customers. So, besides the main objective of each chain including minimisation of transportation, inventory, deterioration and shortage costs, another objective as customers' satisfaction related to delivery times should be considered. Here, the optimal lot-sizes, delivery time between factories and distributors so as to choose and locate the best candidate place, and the optimal flows between layers of supply chain are determined. Also, we analyse the decisions of either sending items directly from factories to customers or sending them to the customers through distributors. Moreover, the mixed integer nonlinear model is solved with GAMS and eventually, several numerical examples are presented. The results show that the proposed model is practical in real world problems.
{"title":"A multi-objective location-inventory model for a fashionable item in a three-level supply chain","authors":"A. Bozorgi-Amiri, Roshanak Akram, A. Taleizadeh, Abolghasem Yousefi-Babadi","doi":"10.1504/IJIR.2016.10003376","DOIUrl":"https://doi.org/10.1504/IJIR.2016.10003376","url":null,"abstract":"Nowadays, designing a supply chain considering customers' satisfaction is a practical field in supply chain area. In this paper, a multi-objective location-inventory model in a three-echelon supply chain for a perishable product with a fixed lifetime is extended where manufacturers, distributors and customers are the members of the chain. One of the most important factors for supplying perishable products is the availability time for the customers. So, besides the main objective of each chain including minimisation of transportation, inventory, deterioration and shortage costs, another objective as customers' satisfaction related to delivery times should be considered. Here, the optimal lot-sizes, delivery time between factories and distributors so as to choose and locate the best candidate place, and the optimal flows between layers of supply chain are determined. Also, we analyse the decisions of either sending items directly from factories to customers or sending them to the customers through distributors. Moreover, the mixed integer nonlinear model is solved with GAMS and eventually, several numerical examples are presented. The results show that the proposed model is practical in real world problems.","PeriodicalId":113309,"journal":{"name":"International Journal of Inventory Research","volume":"67 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123087008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1504/IJIR.2021.10036318
Menghui Qiu
{"title":"The complementarity effect in the venture capital contract: a generalised formulation and new insights","authors":"Menghui Qiu","doi":"10.1504/IJIR.2021.10036318","DOIUrl":"https://doi.org/10.1504/IJIR.2021.10036318","url":null,"abstract":"","PeriodicalId":113309,"journal":{"name":"International Journal of Inventory Research","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123697281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1504/IJIR.2011.045384
Jan Arnold, S. Minner, Matthias Morrocu
Economic production quantities address an important problem in operations management. The objective is to determine the quantity that minimises total cost required to manufacture goods and hold inventories when production is performed incrementally during the manufacturing process. The dynamic impact of costs and demand is often neglected though parameters may vary over time. In this context, optimal control theory goes beyond the suggestion of a numerical approach and allows for an analytical interpretation of optimal solutions. This paper presents a deterministic continuous time approach minimising the net present value of production and inventory holding cost with dynamic parameters. Manufacturing cost per item, holding cost, and demand rate vary over time. Applying Pontryagin’s maximum principle, the optimal policy involves intervals of production at the capacity limit with inventory build up, destocking periods, and periods of just-in-time production. A solution algorithm is presented to find the optimal manufacturing quantities and an economic interpretation of an optimal solution is provided.
{"title":"A continuous time dynamic optimal control manufacturing problem","authors":"Jan Arnold, S. Minner, Matthias Morrocu","doi":"10.1504/IJIR.2011.045384","DOIUrl":"https://doi.org/10.1504/IJIR.2011.045384","url":null,"abstract":"Economic production quantities address an important problem in operations management. The objective is to determine the quantity that minimises total cost required to manufacture goods and hold inventories when production is performed incrementally during the manufacturing process. The dynamic impact of costs and demand is often neglected though parameters may vary over time. In this context, optimal control theory goes beyond the suggestion of a numerical approach and allows for an analytical interpretation of optimal solutions. \u0000 \u0000This paper presents a deterministic continuous time approach minimising the net present value of production and inventory holding cost with dynamic parameters. Manufacturing cost per item, holding cost, and demand rate vary over time. Applying Pontryagin’s maximum principle, the optimal policy involves intervals of production at the capacity limit with inventory build up, destocking periods, and periods of just-in-time production. A solution algorithm is presented to find the optimal manufacturing quantities and an economic interpretation of an optimal solution is provided.","PeriodicalId":113309,"journal":{"name":"International Journal of Inventory Research","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133545498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1504/ijir.2022.10047781
Nipa Biswas, Om Prakash
{"title":"Manufacturing inventory model with random demand and finite production rate under two level of trade credit finance","authors":"Nipa Biswas, Om Prakash","doi":"10.1504/ijir.2022.10047781","DOIUrl":"https://doi.org/10.1504/ijir.2022.10047781","url":null,"abstract":"","PeriodicalId":113309,"journal":{"name":"International Journal of Inventory Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133822741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1504/ijir.2020.10031337
Nini Maharana, A. Nayak, S. Swayamjyoti, Nirakar Niranjan Sethy
{"title":"Inclusion of two-warehouse production prototype for deteriorating inventory items in payments","authors":"Nini Maharana, A. Nayak, S. Swayamjyoti, Nirakar Niranjan Sethy","doi":"10.1504/ijir.2020.10031337","DOIUrl":"https://doi.org/10.1504/ijir.2020.10031337","url":null,"abstract":"","PeriodicalId":113309,"journal":{"name":"International Journal of Inventory Research","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124819857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1504/ijir.2023.10055363
P. Abad
{"title":"A two-period lot sizing and pricing model under multiplicative error demand","authors":"P. Abad","doi":"10.1504/ijir.2023.10055363","DOIUrl":"https://doi.org/10.1504/ijir.2023.10055363","url":null,"abstract":"","PeriodicalId":113309,"journal":{"name":"International Journal of Inventory Research","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130745012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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