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| Christian Klamler and Daniel Eckert |
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| ''A simple ultrafilter proof for an impossibility theorem in judgment aggregation'' |
| ( 2009, Vol. 29 No.1 ) |
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| 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. |
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| Keywords: judgment aggregation |
JEL: D7 - Analysis of Collective Decision-Making: General
D7 - Analysis of Collective Decision-Making: General |
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| Manuscript Received : Dec 15 2008 | | Manuscript Accepted : Mar 12 2009 |
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