Arrow's impossibility theorem suggests that:
A)a voting system will be ideal if the properties of intransitivity and dependence of irrelevant alternatives are satisfied
B)a voting system will be ideal if some form of dictatorship is allowed
C)under certain conditions, there is no scheme for aggregating individual preferences into a valid set of social preferences
D)none of the above

Question

Quizplus · Accepted Answer

Arrow's impossibility theorem states that under certain conditions (such as having more than two options to choose from), there is no method of aggregating individual preferences into a valid set of social preferences that satisfies all desirable criteria, such as transitivity or independence of irrelevant alternatives. This means that no perfect voting system exists. Option A is incorrect because intransitivity and dependence of irrelevant alternatives are undesirable properties for a voting system. Option B is also incorrect because allowing dictatorship is not a desirable property for a fair and democratic voting system.

Arrow's Impossibility Theorem Suggests That