Benham's method: Difference between revisions

Added clone independent category and explanation, rephrased strategy susceptibility paragraph
m (Capitalized "Condorcet", rephrased sentence slightly)
(Added clone independent category and explanation, rephrased strategy susceptibility paragraph)
 
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Because Benham's method is just IRV with the possibility of ending in an earlier round, it is possible to figure out who the Benham winner would be if given the full results of an IRV election (the round-by-round breakdown) and the pairwise comparison table for that election.
 
Like other Condorcetdeterministic voting systemsmethods, Benham's method is vulnerable to [[tactical voting]]. andThe generallycombination ignoresof firstCondorcet place votes.and ThisIRV canprinciples leadleads to scenarioswhat wheremay fringebe candidatesconsidered thata haveconflicting notmechanism: beenon scrutinizedthe canone winhand, withfirst onlyplace middlevotes roundare votes.ignored Benhamwhen there's methoda alsoCondorcet sufferswinner; fromon conflictingthe mechanismsother, wherethey're firstall placethat votesmatters arewhen eitherthere's ignoredno (onceCondorcet therewinner. isHowever, athese Condorcetprinciples winner)may oralso arecover alleach thatother's mattersweak (whenspots, therethus isin nopart Condorcetexplaining winner)Benham's unusual strategy resistance.
 
Benham is cloneproof for the same reason that IRV is: suppose the winner is X and is cloned. Then these clones can't have higher first preference counts than X itself, and so all appear after X. When all of these clones but one has been eliminated, then X still wins. The introduction of clones may lead to Benham needing more rounds to determine the winner, however.
 
== References ==
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[[Category:Smith-efficient Condorcet methods]]
[[Category:Condorcet-IRV hybrid methods]]
[[Category:Clone-independent electoral systems]]
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