Voting Methods (Part 2)

Question 1

What are the criteria for comparing voting methods?

Answer 1

1) Pragmatic concerns
2) Behavioral considerations
3) Information required from the voters
4) Axiomatic characterization results and voting paradoxes

Question 1

What is Condorcet’s Paradox?

Answer 1

There may not be a condorcet winner due to a majority cycle

Question 2

What does it mean for a method to be Condorcet consistent?

Answer 2

When a voting method elects a condorcet winner if there is a condorcet winner

Question 3

Are many methods condorcet consistent?

Answer 3

No, many are not

Question 4

What methods are condorcet consistent?

Answer 4

1) Plurality rule is not condorcet consistent
2) Borda Count is not
3) No scoring rule is condorcet consistent
4) Copeland’s Rule IS CONDORCET CONSISTENT

Question 5

What is Copeland’s Rule?

Answer 5

1) Each voter submits a ranking of the candidates
2) The copeland winner is the candidate that maximizes the win-loss record

Question 6

What is the downside of methods that are always condorcet consistent?

Answer 6

Makes it susceptible to the failure of monotonicity