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A consensus reaching process in the context of non-uniform ordered qualitative scales


  • José Luis García-Lapresta

    () (Universidad de Valladolid)

  • David Pérez-Román

    () (Universidad de Valladolid)


In this paper, we consider that a group of agents judge a set of alternatives by means of an ordered qualitative scale. The scale is not assumed to be uniform, i.e., the psychological distance between adjacent linguistic terms is not necessarily always the same. In this setting, we propose how to measure the consensus in each subset of at least two agents over each subset of alternatives. We introduce a consensus reaching process where some agents may be invited to change their assessments over some alternatives in order to increase the consensus. All the steps are managed in a purely ordinal way through ordinal proximity measures.

Suggested Citation

  • José Luis García-Lapresta & David Pérez-Román, 2017. "A consensus reaching process in the context of non-uniform ordered qualitative scales," Fuzzy Optimization and Decision Making, Springer, vol. 16(4), pages 449-461, December.
  • Handle: RePEc:spr:fuzodm:v:16:y:2017:i:4:d:10.1007_s10700-016-9256-6
    DOI: 10.1007/s10700-016-9256-6

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    References listed on IDEAS

    1. Michel Balinski & Rida Laraki, 2011. "Majority Judgment: Measuring, Ranking, and Electing," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262015137, September.
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