In his 1951 book Social Choice and Individual Values, Arrow argues that a perfect voting system satisfies all of the following properties except
A)unanimity.
B)transitivity.
C)reflexivity.
D)independence of irrelevant alternatives.

Question

Quizplus · Accepted Answer

Arrow's theorem, as presented in his 1951 book "Social Choice and Individual Values," does not include reflexivity as one of the conditions for a perfect voting system. The conditions he discusses are unanimity (if every voter prefers one option over another, then the group preference should reflect this), transitivity (if option A is preferred over B, and B is preferred over C, then A should be preferred over C), and independence of irrelevant alternatives (the social preference between any two options should not be affected by changes in individuals' rankings of irrelevant alternatives). Reflexivity, a concept often associated with preferences or relations in mathematics and economics, is not one of the conditions Arrow specified for a voting system.

In His 1951 Book Social Choice and Individual Values, Arrow