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Arrow's impossibility theorem

Arrow's impossibility theorem is a key result in social choice theory, proved by American economist Kenneth Arrow. It shows that no group decision-making procedure based on ordinal utilities (citizens' orderings of different alternatives) can satisfy the requirements of rational choice. Specifically, no such rule can satisfy independence of irrelevant…

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Arrow's impossibility theorem

Nodes124
Edges123
Triples21
Avg. degree1.98
Density0.016129
Components1

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Arrow's impossibility theorem

Top relations

has method · 11
Arrow's impossibility theorem → Alice, Arrow, Arrow's, Bob, Condorcet, Indeed, It, The, These, Thus, Unfortunately
related to External links · 4
Arrow's impossibility theorem → Arrow's, PhilosophyA, Stanford Encyclopedia, Terence Tao
related to Stronger versions · 2
Arrow's impossibility theorem → Arrow's, Pareto
is a · 1
Arrow's impossibility theorem → key result in social choice theory

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Important terminology

theorem voting arrow's preferences condorcet displaystyle social rule rules voters choice ranked methods arrow however alternatives system candidates majority systems

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Arrow's impossibility theoremis akey result in social choice theory0.90text
instant-runoff voting or plurality votinginstance ofunder the stronger assumption that a voting system in the two-candidate case will agree with a simple majority vote.Unlike pluralitarian rules0.80text
Condorcet methods avoid the spoiler effect in non-cyclic electionsinstance ofunder the stronger assumption that a voting system in the two-candidate case will agree with a simple majority vote.Unlike pluralitarian rules0.80text
where candidates can be chosen by majority ruleinstance ofunder the stronger assumption that a voting system in the two-candidate case will agree with a simple majority vote.Unlike pluralitarian rules0.80text
Arrow's impossibility theoremhas methodThe0.60section
Arrow's impossibility theoremhas methodCondorcet0.60section
Arrow's impossibility theoremhas methodThese0.60section
Arrow's impossibility theoremhas methodIndeed0.60section
Arrow's impossibility theoremhas methodArrow's0.60section
Arrow's impossibility theoremhas methodIt0.60section
Arrow's impossibility theoremhas methodAlice0.60section
Arrow's impossibility theoremhas methodBob0.60section

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