The character of non-manipulable collective choices between two alternatives

Achille Basile (), K. P. S. Bhaskara Rao () and Surekha Rao ()
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Achille Basile: Università Federico II
K. P. S. Bhaskara Rao: Indiana University Northwest
Surekha Rao: Indiana University Northwest

Social Choice and Welfare, 2025, vol. 64, issue 3, No 6, 529-555

Abstract: Abstract We consider classes of non-manipulable social choice functions with range of cardinality at most two within a set of at least two alternatives. We provide the functional form for each of the classes we consider. This functional form is a characterization that explicitly describes how a social choice function of that particular class selects the collective choice corresponding to a profile. We provide a unified formulation of these characterizations using the new concept of “character”. The choice of the character, depending on the class of social choice functions, gives the functional form of all social choice functions of the class.

JEL-codes: D71 (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s00355-024-01546-x

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