This article needs additional citations for
verification. (December 2009) |
A motion and amendment electoral system decides the result of the election by following standard rules for adopting other proposals. The steps are:
This was the system used for the election of the Speaker of the House of Commons until 2001. [1]
If there is a Condorcet winner and people vote according to their preferences, then that individual will be considered in the final vote on the motion in step 4. If there is not a Condorcet winner then any person in the final motion will be a member of the Smith set; which individual that is may depend on who is nominated at which stage. However, there is no guarantee that a motion will pass at the end.
Suppose that Tennessee is holding an election on the location of its capital. The population is concentrated around four major cities. All voters want the capital to be as close to them as possible. The options are:
The preferences of each region's voters are:
42% of voters Far-West |
26% of voters Center |
15% of voters Center-East |
17% of voters Far-East |
---|---|---|---|
|
|
|
|
The voting might go as follows:
Motion and amendment is prone to tactical voting. The result may also depend on the order in which candidates are considered.
In the example above, if supporters of Knoxville pretended to prefer Memphis over Nashville or Chattanooga, they could enable Knoxville to appear in the final motion. The voting would have been:
This particular tactical voting would not work if Knoxville had been nominated before Memphis or Chattanooga.
This article needs additional citations for
verification. (December 2009) |
A motion and amendment electoral system decides the result of the election by following standard rules for adopting other proposals. The steps are:
This was the system used for the election of the Speaker of the House of Commons until 2001. [1]
If there is a Condorcet winner and people vote according to their preferences, then that individual will be considered in the final vote on the motion in step 4. If there is not a Condorcet winner then any person in the final motion will be a member of the Smith set; which individual that is may depend on who is nominated at which stage. However, there is no guarantee that a motion will pass at the end.
Suppose that Tennessee is holding an election on the location of its capital. The population is concentrated around four major cities. All voters want the capital to be as close to them as possible. The options are:
The preferences of each region's voters are:
42% of voters Far-West |
26% of voters Center |
15% of voters Center-East |
17% of voters Far-East |
---|---|---|---|
|
|
|
|
The voting might go as follows:
Motion and amendment is prone to tactical voting. The result may also depend on the order in which candidates are considered.
In the example above, if supporters of Knoxville pretended to prefer Memphis over Nashville or Chattanooga, they could enable Knoxville to appear in the final motion. The voting would have been:
This particular tactical voting would not work if Knoxville had been nominated before Memphis or Chattanooga.