{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T23:46:56Z","timestamp":1784332016481,"version":"3.55.0"},"reference-count":32,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2025,1,5]],"date-time":"2025-01-05T00:00:00Z","timestamp":1736035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Systems"],"abstract":"<jats:p>Abstract: Inventory supply chain planning involves determining the quantity of products to be transported among entities within a specified planning horizon. Often, inventory levels are reviewed at set intervals: (1) Background: In this paper, periodic review (s,S) policy is used to optimize inventories from an integrated perspective of inventory management across the supply chain. The decision to place an order and the order quantity are based on the inventory level at the review time. If the inventory falls below a certain level (s), an order is placed to replenish it to a target level (S); (2) Methods: The planning model is implemented using a mixed integer linear programming model. It determines the inventory levels, supply levels and the (s) and (S) levels for each entity, as well as the flow of products between them. To test the model, a case study is conducted to demonstrate its applicability; (3) Results: The experimental data confirm the model\u2019s validity, as its behavior aligns with the expectations for a periodic review (s,S) policy; (4) Conclusions: Since a fixed replenishment frequency is mandatory, with no continuous inventory review required, this policy offers simplicity and ease of implementation, making it a practical choice for certain inventory management.<\/jats:p>","DOI":"10.3390\/systems13010033","type":"journal-article","created":{"date-parts":[[2025,1,6]],"date-time":"2025-01-06T08:08:52Z","timestamp":1736150932000},"page":"33","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Optimizing Supply Chain Inventory: A Mixed Integer Linear Programming Approach"],"prefix":"10.3390","volume":"13","author":[{"given":"Joaquim Jorge","family":"Vicente","sequence":"first","affiliation":[{"name":"Centro de Investiga\u00e7\u00e3o em Gest\u00e3o (CIGEST), Instituto Superior de Gest\u00e3o, ISG-Business & Economics School, R. Prof. Reinaldo dos Santos, 1500-552 Lisbon, Portugal"},{"name":"Centre for Management Studies of Instituto Superior T\u00e9cnico (CEGIST), Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,1,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"822","DOI":"10.1287\/mnsc.20.5.822","article-title":"Multicommodity distribution system design by benders decomposition","volume":"20","author":"Geoffrion","year":"1974","journal-title":"Manag. Sci."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"546","DOI":"10.1287\/mnsc.43.4.546","article-title":"Information distortion in the supply chain: The bullwhip effect","volume":"43","author":"Lee","year":"1997","journal-title":"Manag. 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