In his 1951 book, Social Choice and Individual Values, Kenneth Arrow used the term "unanimity" to mean
A)A beats B only if everyone prefers A to B.
B)if everyone prefers A to B, then A beats B.
C)if A beats B and B beats C, then A must best C.
D)everyone who is eligible to vote must vote; otherwise, the outcome is invalid.

Question

Quizplus · Accepted Answer

Arrow used the term "unanimity" to mean that if everyone prefers option A to option B, then option A should be chosen over option B. This concept is known as the unanimity criterion in social choice theory.

In His 1951 Book, Social Choice and Individual Values, Kenneth