Recent work by Kasher and Rubinstein (1997) considers the problem of group identification from a social choice perspective. These authors provide an axiomatic characterization of a liberal aggregator whereby the group consist of those and only those individuals each of which views oneself a member of the group. In the present paper we show that the five axioms used in Kasher and Rubinstein s characterization of the liberal aggregator are not independent and prove that only three of their original axioms are necessary and sufficient for the required characterization.
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Paper provided by Tilburg University, Center for Economic Research in its series Discussion Paper with number
89.
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