On S-independence and Hansson’s external independence

Dan Qin*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review


    This paper provides a generalized characterization of the family of independence conditions which are equivalent to independence of irrelevant alternatives by proposing a pair-based refinement of $$\mathcal {S}$$S-independence. Equipped with the new result, the relation between external independence conditions and independence of irrelevant alternatives is explored.

    Original languageEnglish
    Pages (from-to)359-371
    Number of pages13
    JournalTheory and Decision
    Issue number2
    Publication statusPublished - 2015 Sept 1


    • Arrow’s impossibility theorem
    • External similarity independence
    • Independence condition

    ASJC Scopus subject areas

    • General Decision Sciences
    • Economics, Econometrics and Finance(all)
    • Computer Science Applications
    • Applied Psychology
    • General Social Sciences
    • Arts and Humanities (miscellaneous)
    • Developmental and Educational Psychology


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