Independence of irrelevant alternatives: Difference between revisions

Content added Content deleted
imported>WikipediaBot
m (importing text from Wikipedia)
 
imported>DanKeshet
(rm wpisms)
Line 7: Line 7:
None of the [[Borda count]], [[Coombs' method]] or [[Instant-runoff voting]] meet either criterion.
None of the [[Borda count]], [[Coombs' method]] or [[Instant-runoff voting]] meet either criterion.


An [[anecdote]] which illustrates a violation of this property has been attributed to [[Sidney Morgenbesser]]:
An anecdote which illustrates a violation of this property has been attributed to Sidney Morgenbesser:


:After finishing dinner, Sidney Morgenbesser decides to order dessert. The waitress tells him he has two choices: apple pie and blueberry pie. Sidney orders the apple pie. After a few minutes the waitress returns and says that they also have cherry pie at which point Morgenbesser says "In that case I'll have the blueberry pie."
:After finishing dinner, Sidney Morgenbesser decides to order dessert. The waitress tells him he has two choices: apple pie and blueberry pie. Sidney orders the apple pie. After a few minutes the waitress returns and says that they also have cherry pie at which point Morgenbesser says "In that case I'll have the blueberry pie."
Line 13: Line 13:
Voting systems which are not independent of irrelevant alternatives suffer from [[strategic nomination]] considerations.
Voting systems which are not independent of irrelevant alternatives suffer from [[strategic nomination]] considerations.


''Some text of this article is derived with permission from http://condorcet.org/emr/criteria.shtml''
==See also==
==See also==
* [[Spoiler effect]]
* [[Spoiler effect]]
* [[List of democracy and elections-related topics]]


[[Category:Voting system criteria]]
[[Category:Voting system criteria]]


''Some text of this article is derived with permission from http://condorcet.org/emr/criteria.shtml''
{{fromwikipedia}}
{{fromwikipedia}}