Independent social choice correspondences

✍ Scribed by Donald E. Campbell; Jerry S. Kelly

• Publisher: Springer US
• Year: 1996
• Tongue: English
• Weight: 610 KB
• Volume: 41
• Category: Article
• ISSN: 0040-5833
• DOI: 10.1007/bf00134113

✦ Synopsis

A fixed agenda social choice correspondence ~ on outcome set X maps each profile of individual preferences into a nonempty subset of X. If satisfies an analogue of Arrow's independence of irrelevant alternatives condition, then either the range of ff contains exactly two alternatives, or else there is at most one individual whose preferences have any bearing on ft. This is the case even if is not defined for any proper subset of X.