Arrow's impossibility theorem proves that
A)no voting system can satisfy several preferable properties at the same time.
B)politicians will never be able to satisfy the median voter.
C)politicians will never be able to act fully in the best interests of the public good.
D)no voting system will ever depend on the median voter.

Question

​Arrow's impossibility theorem proves that
A)​no voting system can satisfy several preferable properties at the same time.
B)​politicians will never be able to satisfy the median voter.
C)​politicians will never be able to act fully in the best interests of the public good.
D)​no voting system will ever depend on the median voter.

Quizplus · Accepted Answer

Arrow's impossibility theorem proves that no voting system can satisfy several preferable properties at the same time, such as being non-dictatorial, unbiased, and complete. Therefore, option A is correct. Option B and C are not correct because Arrow's theorem is focused on the limitations of voting systems rather than the behavior of individual politicians or the ability to act in the public interest. Option D is also incorrect as the concept of the median voter is not directly related to Arrow's theorem.

​Arrow's Impossibility Theorem Proves That

Arrow's Impossibility Theorem Proves That