Hallo, Juho wrote (31 Aug 2008):
> Woodall free riding uses some irrelevant candidate that > is ranked first. > > Hylland free riding does not rank the favourite candidate. > > A third approach to free riding is to rearrange the > candidates to reflect the estimated probabilities. > > The true preference order of a voter is A>B>C>D>E>... > The voter expects A to be elected quite certainly. > Candidates B and C are less certain. The voter considers > B and C to be almost as good as A. Candidates starting > from D are considerably worse. As a result the voter > decides to vote B>C>A>D>E>... Suppose that you expect candidate A to be elected quite certainly. Then it is a useful strategy not to give your first preference to candidate A. However, it is also clear that it doesn't make any sense to rank candidate A below candidates you despise. Therefore, I would summarize your strategy as a Hylland free riding strategy because you vote preferably for those of your favorite candidates who are less assured of election: http://m-schulze.webhop.net/schulze2.pdf Raph Frank wrote (31 Aug 2008): > I think this is the strategy that most parties actually > use for vote management. They never recommend to the > voters not to rank a certain party member. Actually, it is the main hypothesis of my paper that Hylland free riding and vote management are actually the same. In section 5.1 of my paper, I write: > Presumption of this paper is that the vulnerability to > Hylland free riding is that property of STV methods that > is misused in a vote management strategy. To be more > concrete: We presume that the term "Hylland free riding" > and the term "vote management" refer to the same > strategic problem. The only difference is that the term > "Hylland free riding" refers to this strategic problem > seen from the point of view of an individual voter who > tries to maximize the influence of his vote by voting > preferably for those of his favorite candidates who are > less assured of election, while the term "vote management" > refers to a political party or a group of independent > candidates that tries to maximize its number of seats > by asking its supporters to vote preferably for those > of its candidates who are less assured of election. Markus Schulze ---- Election-Methods mailing list - see http://electorama.com/em for list info
