Free triples, large indifference classes and the majority rule

Barberà, Salvador; Ehlers, Lars

doi:10.1007/s00355-011-0584-8

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…denote a finite set of alternatives with |A| = m. Let I = {1, ..., n}, n ≥ 2 be a finite set of agents. We impose restrictions on the domain of preferences following Barberá and Ehlers (2011). Each agent i has a partition S i of A that is exogenously specified and independent of preferences.…”

Section: The Modelmentioning

confidence: 99%

“…In this paper we consider the exogenous indifference classes model of Barberá andEhlers (2011) andSato (2009) and analyze further the relationship between the structure of indifference classes across agents and dictatorship results. The key to our approach is the pairwise partition graph.…”

Section: Introductionmentioning

confidence: 99%

“…1 In this paper, we investigate a model of domain restrictions involving indifference, the exogenous indifference class model first introduced in Barberá and Ehlers (2011). In this model, the indifference classes of agents' preferences is exogenously given.…”

Section: Introductionmentioning

confidence: 99%

“…The goal of Barberá and Ehlers (2011) was to study the Arrovain aggregation issue in the exogenous indifference class model. Sato (2009) examined the same model from the perspective of strategic voting.…”

Section: Introductionmentioning

confidence: 99%

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Pairwise partition graphs and strategy-proof social choice in the exogenous indifference class model

Pramanik

Sen

2015

Soc Choice Welf

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Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. Terms of use: Documents in EconStor may AbstractIn this paper we consider the exogenous indifference classes model of Barberá andEhlers (2011) andSato (2009) and analyze further the relationship between the structure of indifference classes across agents and dictatorship results. The key to our approach is the pairwise partition graph. We provide necessary conditions on these graphs for strategy-proofness and unanimity (or efficiency) to imply dictatorship. These conditions are not sufficient; we also provide separate stronger conditions that are sufficient. A full characterization is obtained in the case of two agents for domains where strategy-proofness and efficiency imply dictatorship.

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Section: The Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pairwise partition graphs and strategy-proof social choice in the exogenous indifference class model

Pramanik

Sen

2015

Soc Choice Welf

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“…Although the interest in these questions somewhat faded away, there has been recently a renewal of this interest thanks to papers by Barberà and Ehlers (2011) and Jain (2009).…”

Section: Introductionmentioning

confidence: 97%

Social Choice and Cooperative Game Theory: Voting Games as Social Aggregation Functions

Mathieu

Salles

2013

Int. Game Theory Rev.

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We consider voting games as procedures to aggregate individual preferences. We survey positive results on the nonemptiness of the core of voting games and explore other solutions concepts that are basic supersets of the core such as Rubinstein's stability set and two types of uncovered sets. We consider cases where the sets of alternatives are 'ordinary' sets, finite sets and infinite sets with possibly a topological structure.

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