[EM] Condorcet/IRV Tiebreaker
DEMOREP1 at aol.com
DEMOREP1 at aol.com
Sun Feb 18 16:02:45 PST 2001
Another tiebreaker if there is no (or not enough) Condorcet winner(s) using
rank votes only---
1. Check for Condorcet winner(s) (CW).
2. Check for Condorcet loser(s) (CL)- if any, remove them.
3. If no CW(s) after 2, then drop the choice with lowest number of first
choice votes. Repeat 1.
Examples-
26 AB
25 BA
49 C
100
No CW
C is a CL
A is CW -- wins.
Some of the C folks will most likely make second choices in a real election
(possibly resulting in a CW-- A or B).
---
34 ABC
33 BCA
32 CAB
99
No CW
No CL
C loses
A is CW -- wins.
If (repeat, if) there is no CW, then the case for dropping the choice with
the lowest number of first choice votes is rather simple- the other choices
have more first choice votes such that the fewest voters should have their
first choice eliminated.
Standard comment- rankings do NOT show acceptability - which can be done
using a YES/NO vote on each choice.
More information about the Election-Methods
mailing list