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.
Original language | English (US) |
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Pages (from-to) | 165-181 |
Number of pages | 17 |
Journal | Review of Economic Design |
Volume | 17 |
Issue number | 3 |
DOIs | |
State | Published - Sep 2013 |
Keywords
- Individual power
- Information gathering
- Relevant alternatives
ASJC Scopus subject areas
- General Economics, Econometrics and Finance