This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: people to have equal say. How to design a voting rule to select candidates or policy proposals? A voting rule will take every person’s ranking of all alternatives & combine them into one societal ranking. Want this system to satisfy some set of “sensible” criteria. Arrow’s Theorem Universality: The voting rule must provide a complete ranking of all options given voters’ preferences Unanimity If every voter prefers A to B, then the voting rule should rank A above B Transitivity If A>B, and B>C, then A>C Independence of Irrelevant Alternatives If the voting rule ranks A above B, then changes in individuals’ rankings that do not affect the relative rankings of A and B should not affect the voting rule’s ranking of A above B Non-Dictatorship The voting rule should not just take one person’s preferences as the societal ranking...
View Full Document
- Spring '07
- Presidential Elections, Ralph Nader, voting rule