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Antonio Quesada
 
''Unconcerned groups and the majority rule''
( 2011, Vol. 31 No.2 )
 
 
When preferences are defined over two alternatives, the (relative) majority rule is characterized in terms of the four axioms U, P, I, and G. U is unanimity. P is the condition that the union of two unconcerned (that is, indifferent) groups of individuals creates an unconcerned group. I asserts that the preferences of the individuals of an unconcerned group can be cancelled out without altering the result. G states that, for any sufficiently small group G that is not unconcerned and for any group H with the same size as G but without members in common with G, it is possible to make the union of G and H unconcerned.
 
 
Keywords: Social welfare function, majority rule, axiomatic characterization, two alternatives, unconcerned group.
JEL: D7 - Analysis of Collective Decision-Making: General
 
Manuscript Received : Feb 11 2011 Manuscript Accepted : Jun 16 2011

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