Les Cahiers de Recherche - HEC Paris
Judgment Aggregation Theory Can Entail New Social Choice Results
() and Francois Maniquet
Abstract: Judgment (or logical) aggregation theory is logically more
powerful than social choice theory and has been put to use to recover some
classic results of this field. Whether it could also enrich it with
genuinely new results is still controversial. To support a positive answer,
the authors prove a social choice theorem by using the advanced nonbinary
form of judgment aggregation theory developed by Dokow and Holzman (2010c).
This application involves aggregating classifications (specifically
assignments) instead of preferences, and this focus justifies shifting away
from the binary framework of standard judgement aggregation theory to a
more general one.
Keywords: Social choice; Judgment aggregation; Logical aggregation; Aggregation of classifications; Assignments; Nonbinary evaluations; (follow links to similar papers)
JEL-Codes: C65; D71; (follow links to similar papers)
8 pages, October 28, 2014
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