<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>Hi Peter,</DIV>
<DIV> </DIV>
<DIV>Let me say first of all that proportional representation isn't my area of interest, so you</DIV>
<DIV>shouldn't take anything I say to apply also to a PR situation.</DIV>
<DIV> </DIV>
<DIV>And although STV has a single-winner case, my thoughts on equal ranking don't apply</DIV>
<P dir=ltr style="MARGIN-RIGHT: 0px">there either.</DIV>
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<P dir=ltr style="MARGIN-RIGHT: 0px"> </DIV>
<P dir=ltr style="MARGIN-RIGHT: 0px"><BR><BR>--- En date de : <B>Ven 27.5.11, Peter Zbornik <I><pzbornik@gmail.com></I></B> a écrit :<BR><BR>[end quote]<BR><BR>I think you forgot Schulze as it is usually done: Weakest biggest loss.<BR></DIV></BLOCKQUOTE>
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<DIV class=yiv1255323645gmail_quote> </DIV>
<DIV class=yiv1255323645gmail_quote>With "weakest biggest loss", do you mean losing votes (<A href="http://m-schulze.webhop.net/" target=_blank rel=nofollow>http://m-schulze.webhop.net/</A>, page 7)?</DIV>
<DIV class=yiv1255323645gmail_quote> </DIV>
<DIV class=yiv1255323645gmail_quote> </DIV></BLOCKQUOTE>
<DIV class=yiv1255323645gmail_quote>No I mean "winning votes" on that page. Is that what you meant by "biggest win"?</DIV>
<DIV class=yiv1255323645gmail_quote>I can't really see how those could be the same thing.</DIV>
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<DIV class=yiv1255323645gmail_quote> </DIV>
<BLOCKQUOTE class=yiv1255323645gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><BR>Experimentally, in simulations: When you treat equal-ranking as split<BR>votes, voters will have to compromise more often, instead of just<BR>compressing the top ranks. This suggests weaker, non-frontrunner<BR>candidates are more likely to be best advised to drop out of the race,<BR>because their presence is more likely to harm the voters that support<BR>them.<BR></BLOCKQUOTE>
<DIV class=yiv1255323645gmail_quote> </DIV>
<DIV class=yiv1255323645gmail_quote>Could you please send me a link to these simulations?</DIV>
<DIV class=yiv1255323645gmail_quote> </DIV>
<DIV class=yiv1255323645gmail_quote> </DIV></BLOCKQUOTE>
<DIV class=yiv1255323645gmail_quote>There is no complete set of simulations currently/yet. If you want to get a sense of</DIV>
<DIV class=yiv1255323645gmail_quote>what I was doing, you can go to the archives:</DIV>
<DIV class=yiv1255323645gmail_quote><A href="http://lists.electorama.com/pipermail/election-methods-electorama.com/">http://lists.electorama.com/pipermail/election-methods-electorama.com/</A></DIV>
<DIV class=yiv1255323645gmail_quote>and read my March 2011 posts in particular. My simulations involve voters who do not</DIV>
<DIV class=yiv1255323645gmail_quote>initially know anything about the method except the valid ballot types, but try to </DIV>
<DIV class=yiv1255323645gmail_quote>determine their ideal vote in a given situation via repeated and hypothetical polling.</DIV>
<DIV class=yiv1255323645gmail_quote> </DIV>
<DIV class=yiv1255323645gmail_quote>I have explained (probably five years ago) why we should expect margins to have more</DIV>
<DIV class=yiv1255323645gmail_quote>favorite betrayal incentive than WV though. Suppose that you want to vote A>B, but</DIV>
<DIV class=yiv1255323645gmail_quote>so doing causes C to win instead of B, because A defeats B pairwise. In WV both</DIV>
<DIV class=yiv1255323645gmail_quote>reversing the order to be B>A or compressing the top to be A=B have the same effect</DIV>
<DIV class=yiv1255323645gmail_quote>in reducing the magnitude of B's loss to A. But in margins reversal is twice as effective</DIV>
<DIV class=yiv1255323645gmail_quote>as compression.</DIV>
<DIV class=yiv1255323645gmail_quote> </DIV>
<DIV class=yiv1255323645gmail_quote>Kevin Venzke</DIV>
<DIV class=yiv1255323645gmail_quote> </DIV></td></tr></table>