Question

Homework (Ch 22) 7. Understanding Arrow's impossibility theorem Arrow's impossibility theorem states that under certain assumptions about preferences, no voting system exists that satisfies all of the following properties . Unanimity Transitivity • Independence of irrelevant alternatives • No dictators ted Assume individuals in a society have preferences regarding the following possible outcomes: A, B, and C. 5 For each description in the following table, identify the property of a desirable voting system it portrays. Unanimity Transitivity Independence of Irrelevant Alternatives No Dictators EE 7. mited d Description The ranking between A and C does not depend on whether is also available oo If everyone prefers A to C, then A beats There is no person who always gets what he wants, despite everyone else's preferences If B beats A, and A beats C, then beats

Answer 1

Table.

Situation	unanimity	transitivity	Independence	no dictators
Ranking between			✓
If everyone prefers	✓
There is no person				✓
If B beats A		✓

MCQ:

Option 2)

it violates the assumption of independence of irrelevant alternatives