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Naslov:Dynamic discrete inventory control model with deterministic and stochastic demand in pharmaceutical distribution
Avtorji:ID Antić, Slobodan (Avtor)
ID Djordjevic Milutinovic, Lena (Avtor)
ID Lisec, Andrej (Avtor)
Datoteke:.pdf Dynamic_Discrete_Inventory_Control-Antic-2022.pdf (3,83 MB)
MD5: 38C414F4887AB413759CE6805BE3AF87
 
URL https://doi.org/10.3390/app12031536
 
Jezik:Angleški jezik
Vrsta gradiva:Znanstveno delo
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FL - Fakulteta za logistiko
Opis:This paper presents an inventory control problem in a private pharmaceutical distribution company from the Republic of Serbia. The company realizes that distribution within nine neighbouring countries and inventory control in the pharmaceutical supply chain is centralized. In order to constitute a conceptual model of the problem, we propose the modern control theory concept. The conceptual model is based on the specific practical assumptions and constraints of the supply chain. Thereafter, a dynamic discrete mathematical model of inventory control is formulated to reflect elements of the system and their relations. The model considers multiple pharmaceutical products, variable lead time, realized stochastics and deterministic demand, and different ordering policies (Lot for Lot and Fixed Order Quantity). Deterministic demand is represented as a sales forecast for each product per month, while stochastic demand is generated as a random variation of sales forecast in a range of ±20%. Two objective functions are defined as the maximization of the difference between planned average inventory level and realized average inventory level, and the minimization of stock-out situations. We develop a procedure for the determination of reorder points and the number of deliveries to achieve proposed objective functions. The model overcomes shortages of theoretically-based distribution requirements planning models and offers solutions to the limitations in inventory control practice. Real-life data, collected over two years, are used for the validation of the proposed model and the solution procedure. Numerical examples illustrate the model application and behaviour.
Ključne besede:distribution, inventory management, logistics, pharmaceutical companies
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:01.01.2020
Leto izida:2022
Št. strani:str. [1]-27
Številčenje:Vol. 12, iss. 3
PID:20.500.12556/DKUM-84935 Novo okno
UDK:658.6
COBISS.SI-ID:95844355 Novo okno
DOI:10.3390/app12031536 Novo okno
ISSN pri članku:2076-3417
Datum objave v DKUM:09.08.2023
Število ogledov:311
Število prenosov:21
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Ostalo
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Gradivo je del revije

Naslov:Applied sciences
Skrajšan naslov:Appl. sci.
Založnik:MDPI
ISSN:2076-3417
COBISS.SI-ID:522979353 Novo okno

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:distribucija, upravljanje zalog, logistika, farmacevtska podjetja


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