Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: https://hdl.handle.net/10419/127090 
Erscheinungsjahr: 
2014
Schriftenreihe/Nr.: 
ISER Discussion Paper No. 898
Verlag: 
Osaka University, Institute of Social and Economic Research (ISER), Osaka
Zusammenfassung: 
In this paper we consider the exogenous indifference classes model of Barberá and Ehlers (2011) and Sato (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.
Schlagwörter: 
Social choice functions
Strategy-proofness
Dictatorial Domains
Exogenous Indifference Class
Gibbard- Satterthwaite theorem
JEL: 
D71
Dokumentart: 
Working Paper

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