Math 108 Topics in Mathematics | Laura Barnes |
9.4 Insurmountable Difficulties: Arrow's Impossibility Theorem - Video
9.4 Insurmountable Difficulties: Arrow's Impossibility Theorem - Video
Key Idea
Arrow’s impossibility theorem states that with three or more candidates and any number of voters, there does not exist (and will never exist) a voting system that produces a winner satisfying Pareto and independence of irrelevant alternatives (IIA), and is not a dictatorship.