A Comment on Arrow's Impossibility Theorem

Alec Sandroni*, Alvaro Sandroni

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Arrow (1950) famously showed the impossibility of aggregating individual preference orders into a social preference order (together with basic desiderata). This paper shows that it is possible to aggregate individual choice functions, that satisfy almost any condition weaker than WARP, into a social choice function that satisfy the same condition (and also Arrow's desiderata).

Original languageEnglish (US)
Pages (from-to)347-354
Number of pages8
JournalB.E. Journal of Theoretical Economics
Issue number1
StatePublished - Jan 1 2021


  • Arrow
  • WARP
  • aggregators

ASJC Scopus subject areas

  • Economics, Econometrics and Finance(all)


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