Social Choice Theory

concepts · 3 notes linked

Related: Rank Aggregation · Condorcet Paradox · David Maciver · Kemeny Optimisation · Wikipedia · Voting Systems · Kenneth Arrow · Voting Theory

Notes

• Arrow's impossibility theorem - Wikipedia — No ranked voting rule simultaneously satisfies Pareto, non-dictatorship, and IIA
• Borda count - Wikipedia — Positional voting rule awarding points by number of candidates ranked below
• Rank aggregation basics: Local Kemeny optimisation — Local Kemeny optimisation as tractable rank aggregation via adjacent swaps