Judgment Aggregation Theory Can Entail New Social Choice Results

8 Pages Posted: 4 Nov 2014

See all articles by Francois Maniquet

Francois Maniquet

Catholic University of Louvain (UCL) - Center for Operations Research and Econometrics (CORE)

Philippe Mongin

GREGHEC; CNRS & HEC Paris - Economics & Decision Sciences

Date Written: October 28, 2014

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, we 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

JEL Classification: C65, D71

Suggested Citation

Maniquet, Francois and Mongin, Philippe, Judgment Aggregation Theory Can Entail New Social Choice Results (October 28, 2014). HEC Paris Research Paper No. ECO/SCD-2014-1063. Available at SSRN: https://ssrn.com/abstract=2518422 or http://dx.doi.org/10.2139/ssrn.2518422

Francois Maniquet

Catholic University of Louvain (UCL) - Center for Operations Research and Econometrics (CORE) ( email )

34 Voie du Roman Pays
B-1348 Louvain-la-Neuve, b-1348
Belgium
+32 10 474328 (Phone)
+32 10 474301 (Fax)

HOME PAGE: http://www.core.ucl.ac.be/staff/maniquetcore.htm

Philippe Mongin (Contact Author)

GREGHEC ( email )

1 rue de la Libération
Jouy-en-Josas, 78350
France

CNRS & HEC Paris - Economics & Decision Sciences ( email )

Paris
France

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