3-2-1 voting: Difference between revisions

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Revision as of 16:04, 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 17: / Line 17: @@
 | style="text-align: right;" | 39
 | Bulldogs, Knights
-| Lions
+|
-| Tigers
+| Lions, Tigers
 |-
 | style="text-align: right;" | 1
 | Bulldogs
-| Knights
+|
-| Lions, Tigers
+| Knights, Lions, Tigers
 |-
 | style="text-align: right;" | 35
 | Tigers
-| Lions, Knights
+| Lions
-| Bulldogs
+| Bulldogs, Knights
 |-
 | style="text-align: right;" | 20
 | Lions
-| Tigers, Knights
+| Tigers
-| Bulldogs
+| Bulldogs, Knights
 |-
 | style="text-align: right;" | 5
@@ Line 49: / Line 49: @@
 |-
 | Lions
-| 25
+| bgcolor="#fcc"|25
 | 35
 | 40
+| bgcolor="#444"|
-|
 |-
 | Tigers
-| style="bgcolor: CFC;" | 35
+| bgcolor="#cfc"| 35
 | 20
-| 45
+| bgcolor="#cfc"|45
+| bgcolor="#cfc"| 55
-|
 |-
 | Knights
+| bgcolor="#cfc"|  44
-| 44
-| 1
+| 0
+| bgcolor="#fcc"|56
-| 55
+| bgcolor="#444"|
-|
 |-
 | Bulldogs
+| bgcolor="#cfc"|  40
-| 40
 | 5
-| 55
+| bgcolor="#cfc"|55
+| bgcolor="#fcc"|45
-|
 |}