3-2-1 voting: Difference between revisions

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Revision as of 16:06, 15 December 2016

In 3-2-1 voting, voters may rate each candidate “Good”, “Acceptable”, or “Rejected”. It has three steps:

Find 3 Semifinalists: the candidates with the most “good” ratings. (If this is a partisan election, no two semifinalists may come from the same party).
Find 2 Finalists: the semifinalists with the fewest rejections.
Find 1 winner: the finalist who is rated above the other on more ballots.

Imagine an election for a high school mascot, in which the options are “Bulldogs”, “Lions”, “Tigers”, or “Knights”, with the following votes:

Faction size	"Good" candidates	"Acceptable" candidates	"Bad" candidates
39	Bulldogs, Knights		Lions, Tigers
1	Bulldogs		Knights, Lions, Tigers
35	Tigers	Lions	Bulldogs, Knights
20	Lions	Tigers	Bulldogs, Knights
5	Knights, Lions	Bulldogs	Tigers

Candidate	"Good" ratings	"Acceptable" ratings	"Bad" ratings	2-way score
Lions	25	35	40
Tigers	35	20	45	55
Knights	44	0	56
Bulldogs	40	5	55	45

@@ Line 50: / Line 50: @@
 | Lions
 | bgcolor="#fcc"|25
-| bgcolor="#fcc"|35
+| bgcolor="#ebb"|35
 |bgcolor="#fcc"| 40
 | bgcolor="#fcc"|
@@ Line 56: / Line 56: @@
 | Tigers
 | bgcolor="#cfc"| 35
-| 20
+| bgcolor="#beb"|20
 | bgcolor="#cfc"|45
 | bgcolor="#cfc"| 55
@@ Line 62: / Line 62: @@
 | Knights
 | bgcolor="#cfc"|  44
+| bgcolor="#beb"|0
-| 0
 | bgcolor="#fcc"|56
 | bgcolor="#fcc"|
@@ Line 68: / Line 68: @@
 | Bulldogs
 | bgcolor="#cfc"|  40
+| bgcolor="#beb"| 5
-| 5
 | bgcolor="#cfc"|55
 | bgcolor="#fcc"|45