Independence of irrelevant alternatives (IIA) is an axiom of decision theory which codifies the intuition that a choice between A {\displaystyle A} and...

to be spoilerproof and satisfy independence of irrelevant alternatives. The frequency and severity of spoiler effects depends substantially on the voting...

nomination consists of manipulating a feature of voting systems which lies in their lacking the property of ‘independence of irrelevant alternatives’. Arrow's impossibility...

in that methods passing independence of irrelevant alternatives (but not the Smith criterion) also satisfy this definition of Smith-IIA. If the criterion...

independent of irrelevant alternatives, it still satisfies local independence of irrelevant alternatives and independence of Smith-dominated alternatives, meaning...

considered a weak form of the independence of irrelevant alternatives (IIA) criterion that nevertheless is failed by a number of voting rules. A method...

considered a weak form of the independence of irrelevant alternatives (IIA) criterion that nevertheless is failed by a number of voting rules. A method...

satisfy the requirements of rational choice. Specifically, Arrow showed no such rule can satisfy independence of irrelevant alternatives, the principle that...

occurred in the 2009 Burlington mayoral election. The independence of irrelevant alternatives criterion states that "the election outcome remains the...

incompatible with the consistency, independence of irrelevant alternatives (though it implies a weaker analogous form of IIA: when there is a Condorcet winner...

problem that satisfies the axioms of scale invariance, symmetry, efficiency, and independence of irrelevant alternatives. According to Paul Walker, Nash's...

can cause voting mechanisms to violate the axiom of independence of irrelevant alternatives—the choice of winner by a voting mechanism could be influenced...

option. The decoy effect is also an example of the violation of the independence of irrelevant alternatives axiom of decision theory. More simply, when deciding...

combination of these two methods creates a highly strategy-resistant system. Tideman's Alternative fails independence of irrelevant alternatives, meaning...

satisfies independence of irrelevant alternatives, while the KS solution instead satisfies resource monotonicity. A two-person bargain problem consists of a pair...

Minimax fails independence of irrelevant alternatives, independence of clones, local independence of irrelevant alternatives, and independence of Smith-dominated...

Schulze method also fails Peyton Young's criterion of Local Independence of Irrelevant Alternatives. The following table compares the Schulze method with...

voters turning out to support them. Score voting satisfies independence of irrelevant alternatives, and does not tend to exhibit spoiler effects. It does...

Supporters of electoral reform generally see the kingmaker ability as a positive development, and claim that cross party ties produced by some alternatives to...

of this kind is said to have "independence from irrelevant alternatives" (IIA). Consider a set X {\displaystyle X} of possible outcomes, and consider...

impossibility theorem, and satisfy both unanimity and independence of irrelevant alternatives. However, highest medians fail the slightly stronger near-unanimity...

regressions reveals why the model relies on the assumption of independence of irrelevant alternatives described above. The unknown parameters in each vector...

Arrow's independence of irrelevant alternatives and Pareto efficiency. Maximal lotteries do not satisfy the standard notion of strategyproofness, as Allan...

symmetry, the Condorcet loser criterion and the independence of irrelevant alternatives criterion. If equal and skipped rankings are allowed, Bucklin passes...

Consistency Independence of Smith-dominated alternatives Independence of clones Independence of irrelevant alternatives Local independence of irrelevant alternatives...

C} . Independence of irrelevant alternatives pertains to well-defined preferences as well. It assumes that two gambles mixed with an irrelevant third...

in the alternative vote system, candidates are ranked numerically in order of preference. The important difference is that an additional group of members...

The use of the softmax in decision theory is credited to R. Duncan Luce,: 1  who used the axiom of independence of irrelevant alternatives in rational...

shows that the sincere favorite criterion is distinct from independence of irrelevant alternatives, and that ranked voting methods do not necessarily fail...

the probability of one of those candidates winning increases. This is illustrated by the example 'Effect of irrelevant alternatives' above. Therefore...