Arrow's Impossibility Theorem Tells Us That

question 16

Multiple Choice

Arrow's impossibility theorem tells us that:

• A)most voting systems meet the criteria for an ideal system, yet politicians cannot seem to change the way in which elections are held.
• B)no voting system can aggregate the preferences of voters of three or more options while meeting all of the criteria of an ideal system.
• C)political pressures will always corrupt a voting system, making none ideal.
• D)no voting system can ever attain all four criteria of an ideal voting system.

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Definitions:

Blind Taste Test

An evaluation method where the participants sample food or drink without knowing the brand or identity to prevent bias in their feedback.

Judged

Considered or deemed to be in a certain way, often after careful assessment.

Soundness

The attribute of an argument when it is both logically valid and its premises are true.

Cogency

The quality of an argument being convincing or persuasive due to the truth of its premises and its logical structure.