A simple ultrafilter proof for an impossibility theorem in judgment aggregation

Christian Klamler and Daniel Eckert ()

Economics Bulletin, 2009, vol. 29, issue 1, 319-327

Abstract: We show how ultrafilters can be used to prove a central impossibility result in judgement aggregation introduced by Nehring and Puppe (2005), namely that for a logically strongly interconnected agenda, an independent and monotonic judgement aggregation rule which satisfies universal domain, collective rationality and sovereignty is necessarily dictatorial.

Keywords: judgment; aggregation (search for similar items in EconPapers)
JEL-codes: D7 (search for similar items in EconPapers)
Date: 2009-03-12
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Citations: View citations in EconPapers (5)

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