Petropoulos, FotiosLaporte, GilbertAktas, EmelAlumur, Sibel A.Archetti, ClaudiaAyhan, HayriyeZhao, Xuying2024-07-052024-07-0520240160-56821476-936010.1080/01605682.2023.22538522-s2.0-85181676484https://doi.org/10.1080/01605682.2023.2253852https://hdl.handle.net/20.500.14411/2126Ljubic, Ivana/0000-0002-4834-6284; Psaraftis, Harilaos N/0000-0003-1671-4406; Cicek, Cihan Tugrul/0000-0002-3532-2638; Kuo, Yong-Hong/0000-0002-6170-324X; Li, Hai Tao/0000-0003-0682-2868; Saarinen, Lauri/0000-0001-6799-268X; Aktas, Emel/0000-0003-3509-6703; Chen, Bo/0000-0001-7605-9453; tarhan, istenc/0000-0002-1632-884X; Thielen, Clemens/0000-0003-0897-3571; Holmstrom, Jan/0000-0002-2596-0337; battarra, maria/0000-0001-8497-9110; Vasilakis, Christos/0000-0002-0391-0910; Yearworth, Mike/0000-0002-8468-0335; Petropoulos, Fotios/0000-0003-3039-4955; Erdogan, Gunes/0000-0002-2456-3719; Weron, Rafal/0000-0003-1619-5239Throughout its history, Operational Research has evolved to include methods, models and algorithms that have been applied to a wide range of contexts. This encyclopedic article consists of two main sections: methods and applications. The first summarises the up-to-date knowledge and provides an overview of the state-of-the-art methods and key developments in the various subdomains of the field. The second offers a wide-ranging list of areas where Operational Research has been applied. The article is meant to be read in a nonlinear fashion and used as a point of reference by a diverse pool of readers: academics, researchers, students, and practitioners. The entries within the methods and applications sections are presented in alphabetical order. The authors dedicate this paper to the 2023 Turkey/Syria earthquake victims. We sincerely hope that advances in OR will play a role towards minimising the pain and suffering caused by this and future catastrophes.eninfo:eu-repo/semantics/openAccessReviewencyclopediatheorypracticeprinciplesoptimisationprogrammingsystemssimulationdecision makingmodelsReviewQ2753423617WOS:0011323435000011