1. The impact of intermediaries on a negotiation: an approach from game theory

   • Susana López
   • Guillermo Owen
   • Martha Saboya

   OriginalPaper Open access 20 October 2021 Pages: 837 - 859

   

2. Collaborative airline revenue sharing game with grey demand data

   • Mehmet Onur Olgun

   OriginalPaper 30 October 2021 Pages: 861 - 882

   

3. A study on flow decomposition methods for scheduling of electric buses in public transport based on aggregated time–space network models

   • Nils Olsen
   • Natalia Kliewer
   • Lena Wolbeck

   OriginalPaper Open access 27 August 2020 Pages: 883 - 919

   

4. Evaluating cost impacts on reverse logistics using an Economic Order Quantity (EOQ) model with environmental and social considerations

   • Lucas Dias Condeixa
   • Pierry Silva
   • Adriana Leiras

   Original Paper 26 August 2020 Pages: 921 - 940

   

5. Effects of OCRA parameters and learning rate on machine scheduling

   • Ercan Şenyiğit
   • Uğur Atici
   • Mehmet Burak Şenol

   Original Paper 02 September 2020 Pages: 941 - 959

   

6. An optimisation approach for the e-grocery order picking and delivery problem

   • Mar Vazquez-Noguerol
   • Jose Comesaña-Benavides
   • J. Carlos Prado-Prado

   OriginalPaper 22 September 2020 Pages: 961 - 990

   

7. Dealing with time in the multiple traveling salespersons problem with moving targets

   • Anke Stieber
   • Armin Fügenschuh

   OriginalPaper Open access 16 October 2020 Pages: 991 - 1017

   

8. A procedure for the introduction of leanness into a company

   • Davorin Cimermančič
   • Janez Kušar
   • Tomaž Berlec

   OriginalPaper Open access 22 January 2021 Pages: 1019 - 1049

   

9. A framework of incorporating confidence levels to deal with uncertainty in pairwise comparisons

   • Georgia Dede
   • Thomas Kamalakis
   • Dimosthenis Anagnostopoulos

   OriginalPaper 06 January 2021 Pages: 1051 - 1069

   

10. On monotonicity and search strategies in face-based copositivity detection algorithms

    • B. G.-Tóth
    • E. M. T. Hendrix
    • L. G. Casado

    OriginalPaper Open access 06 March 2021 Pages: 1071 - 1092

    

11. Triangle-free graphs and completely positive matrices

    • Abraham Berman
    • Naomi Shaked-Monderer

    OriginalPaper 27 April 2021 Pages: 1093 - 1099

12. Optimization model to support sustainable crop planning for reducing unfairness among farmers

    • Ana Esteso
    • M. M. E. Alemany
    • Shaofeng Liu

    OriginalPaper 24 May 2021 Pages: 1101 - 1127

    

13. Optimized location of light sources to cover a rectangular region

    • Kristóf Kovács
    • Boglárka Tóth

    Original Paper Open access 09 June 2021 Pages: 1129 - 1149