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The possibility of judgment aggregation for network agendas

  • Franz Dietrich

    (University of Konstanz, Germany)

Within social choice theory, the new field of judgment aggregation aims at reaching collective judgments on a set of logically interconnected propositions. I investigate decision problems, in which the agenda is a network, composed of atomic propositions and connection rules between them. Networks can represent various realistic decision problems, including most concrete examples given in the literature. Nevertheless, networks are unexplored so far due to problems when modelling connection rules in standard propositional logic. By extending the logic, I prove that, for any network, decision rules satisfying the common conditions always exist, in contrast to the literature's emphasis on impossibilities. I also characterise the class of such decision rules, and propose a simple way to select a decision rule.

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Paper provided by EconWPA in its series Public Economics with number 0504002.

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Length: 20 pages
Date of creation: 05 Apr 2005
Date of revision:
Handle: RePEc:wpa:wuwppe:0504002
Note: Type of Document - pdf; pages: 20
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  1. Franz Dietrich & Christian List, 2004. "Strategy-proof judgment aggregation," Public Economics 0404007, EconWPA, revised 25 Jul 2005.
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