A multi-dimensional approach toward collective choice

Yasumi Matsumoto

    Research output: Contribution to journalArticle

    Abstract

    If we look carefully at Arrow's definition of independence of irrelevant alternatives, we are often puzzled as to why he does not examine collective choice in terms of a multi-dimensional framework. There is no reason why we should not employ a multi-dimensional approach as far as the definition is concerned. When we reconsider his original framework in terms of a multi-dimensional point of view, his other definition of unrestricted domain looks too demanding. Our actual preference relations may change according to the change of our view and our preference orderings seem rather independent even toward the same set of alternatives. Once we recognise this, it may be almost impossible to accept his unrestricted domain demanding free choice from all logically possible orderings of all alternatives, which may justify the notion that our choices are dimensionally separated. Our flexibility of choice may be rather restricted in an actual choice situation. By introducing a multidimensional approach, it is possible to have a more realistic explanation of our actual choice behaviour in the framework of collective choice theory. In this paper, the difference between the traditional single-dimensional approach and a new multi-dimensional approach is theoretically clarified.

    Original languageEnglish
    Pages (from-to)272-280
    Number of pages9
    JournalGlobal Business and Economics Review
    Volume11
    Issue number3-4
    DOIs
    Publication statusPublished - 2009

    Fingerprint

    Collective choice
    Preference relation
    Independence of irrelevant alternatives
    Choice behavior
    Choice theory

    Keywords

    • Dictatorship
    • Illogical individual preference relations
    • Independence of irrelevant alternatives
    • Multi-dimensional collective choice

    ASJC Scopus subject areas

    • Business and International Management
    • Economics and Econometrics

    Cite this

    A multi-dimensional approach toward collective choice. / Matsumoto, Yasumi.

    In: Global Business and Economics Review, Vol. 11, No. 3-4, 2009, p. 272-280.

    Research output: Contribution to journalArticle

    Matsumoto, Yasumi. / A multi-dimensional approach toward collective choice. In: Global Business and Economics Review. 2009 ; Vol. 11, No. 3-4. pp. 272-280.
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