NDLI: Strategy-proof resolute social choice correspondences

Content Provider	Springer Nature Link
Author	Özyurt, Selçuk Sanver, M. Remzi
Copyright Year	2007
Abstract	We qualify a social choice correspondence as resolute when its set valued outcomes are interpreted as mutually compatible alternatives which are altogether chosen. We refer to such sets as “committees” and analyze the manipulability of resolute social choice correspondences which pick fixed size committees. When the domain of preferences over committees is unrestricted, the Gibbard–Satterthwaite theorem—naturally—applies. We show that in case we wish to “reasonably” relate preferences over committees to preferences over committee members, there is no domain restriction which allows escaping Gibbard–Satterthwaite type of impossibilities. We also consider a more general model where the range of the social choice rule is determined by imposing a lower and an upper bound on the cardinalities of the committees. The results are again of the Gibbard–Satterthwaite taste, though under more restrictive extension axioms.
Starting Page	89
Ending Page	101
Page Count	13
File Format	PDF
ISSN	01761714
Journal	Social Choice and Welfare
Volume Number	30
Issue Number	1
e-ISSN	1432217X
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-03-20
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Economics general Economic Theory
Content Type	Text
Resource Type	Article
Subject	Social Sciences Economics and Econometrics

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Strategy-proof resolute social choice correspondences