Social Choice and Welfare

, Volume 34, Issue 4, pp 571–596 | Cite as

Individual powers and social consent: an axiomatic approach

original paper


We introduce a notion of conditionally decisive powers the exercise of which depends on social consent. Decisive powers, or the so-called libertarian rights, are examples and much weaker forms of powers are covered by our notion. We provide an axiomatic characterization of existence of a system of powers and its uniqueness as well as characterizations of various families of rules represented by systems of powers. Critical axioms are monotonicity, independence and symmetric linkage (person i and i’s issues should be treated symmetrically to person j and j’s issues for at least one linkage between issues and persons).


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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Department of EconomicsKorea UniversitySeoulKorea

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