Relaxing IIA and the effect on individual power

Donald Campbell () and Jerry Kelly ()

Review of Economic Design, 2013, vol. 17, issue 3, 165-181

Abstract: We allow departures from IIA in Arrow’s framework. Our measure of the extent of a departure is the amount of information needed to socially order a pair of alternatives. We also propose a measure of the scope of an individual’s power. The scope of at least one individual’s power increases in step with a reduction in the amount of information that has to be gathered to socially order two alternatives. This result is also established for correspondences, which select a subset of the feasible set as a function of individual preferences. Copyright Springer-Verlag Berlin Heidelberg 2013

Keywords: Individual power; Information gathering; Relevant alternatives; D70; D71 (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1007/s10058-013-0140-3

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