English, Article, Journal or magazine article edition: A Possibility Theorem on Aggregation Over Multiple Interconnected Propositions Christian List

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Bookmark: http://trove.nla.gov.au/version/20767
Physical Description
  • preprint
Language
  • English

Edition details

Title
  • A Possibility Theorem on Aggregation Over Multiple Interconnected Propositions
Author
  • Christian List
Physical Description
  • preprint
Notes
  • Drawing on the so-called `doctrinal paradox`, List and Pettit (2002a) have shown that, given an unrestricted domain condition, there exists no procedure for aggregating individual sets of judgments over multiple interconnected propositions into corresponding collective ones, where the procedure satisfies some minimal conditions similar to the conditions of Arrow`s theorem. I prove that we can avoid the paradox and the associated impossibility result by introducing an appropriate domain restriction: a structure condition, called unidimensional alignment, is shown to open up a possibiity result, similar in spirit to Black`s median voter theorem (1948). Specifically, I prove that, given unidimensional alignment, propositionwise majority voting is the unique procedure for aggregating individul sets of judgments into collective ones in accordance with the above mentioned minimal conditions.
  • aggregation, beliefs, propositional logic, domain restriction, unidimensional alignment
  • RePEc:oxf:wpaper:123
Language
  • English
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