[EM] Rob reply: FBC vs CC. SFC. RV.,
Paul Kislanko
kislanko at airmail.net
Mon Oct 3 18:46:00 PDT 2005
I wish you guys would stop bringing politics into this.
I like Nader, but frankly would never want him as President. Beatpath is as
good as any method that counts from the pairwise matrix instead of ballots,
but I would never want it to be used to count my ranked ballot.
I was really hoping this list was for discussions about methods, not
personal opinions.
> -----Original Message-----
> From: election-methods-electorama.com-bounces at electorama.com
> [mailto:election-methods-electorama.com-bounces at electorama.com
> ] On Behalf Of MIKE OSSIPOFF
> Sent: Monday, October 03, 2005 8:31 PM
> To: election-methods at electorama.com
> Subject: [EM] Rob reply: FBC vs CC. SFC. RV.,
>
> Rob--
>
> I'd said:
>
> >A voter will favorite-bury if, for that voter, the important
> goal is to
> >keep an unacceptable candidate from winning, and if
> favorite-burial will
> >increase the probability of accomplishing that.
>
> I posit that very few voters will be in that predicament. It is my
> experience that most voters prefer candidates with a chance to win.
> People that like to be part of quixotic movements are
> exceedingly rare.
>
> I reply:
>
> Thank you for proving my point. You believe your tv when it
> tells you that
> only the Democrat could beat the Republican, and that to
> support someone
> other than that media- anointed, corporate-bought Democrat is
> "quixotic".
> You feel isolated, believinig that only you and some tiny
> subset of the
> population want something better than Kerry. After all,
> doesn't the tv
> represent and portray the true America? So of course you
> obediently vote for
> the Democrat, however dishonest he is, and however odious his
> policies and
> record.
>
> There are people with progressive goals, who prefer Nader to
> the Democrat.
> As you point out, most of those people feel compelled to vote for the
> Democrat.
>
> I have merely suggested that they'll do the same when the
> voting system is
> BeatpathWinner.
>
> If I haven't made myself clear, FBC is important so that
> those giveaway
> progressives won't feel compelled to keep concealing what they want.
>
> When I referred to acceptable and unacceptable candidates, I
> clarified that
> the lesser-of-2-evils progressives have a very different
> notion about what
> is acceptable, as compared to what I consider acceptable.
> When you talk to
> such a progressive, they make it clear that the Republican is the
> unacceptable, and that anyone better than the Republican is
> acceptable. It
> was such voters that I was talking about.
>
> So, as I said, these people, if their only goal is to ensure that an
> unacceptable (Republican) won't win, will do what it takes to
> minimize the
> probability of that happening.
>
> And, aside from that, the number who will favorite-bury for
> that reason is
> further increased when voters who don't understand the count
> method don't
> even know how unlikely it is that they could regret not
> favorite-burying. I
> covered that in my previous message. Then it won't just be
> people who will
> do whatever it takes to minimize the probability of a
> Republican win. It
> will also include people who'd only do that if they felt that the FBC
> failure might be likely.
>
> You continued:
>
>
> Moreover, the cases where sincere voting regret are rare.
>
> I reply:
>
> As I said:
>
> 1. That's irrelevant. I'm talking about people whose only goal in the
> election is to keep the Republican from winning, to minimize
> the probability
> that the Republican will win, whatever it takes.
>
> 2. And someone who doesn't know how the count works might not
> know how
> likely it is that they could regret not favorite-burying.
>
> You continued:
>
> Combine that
> with the innate desire that I think people who vote contrarian ballots
> have to "make a statement", and I suspect we're talking about a
> diminishingly small number of people who will reverse order.
>
> I reply:
>
> What we have to go on is that the practice is near-universal
> in Plurality
> elections, and also common in IRV elections. Yes, the
> evidence I've prsented
> about Australian voting strategy is "anecdotal" because no
> one has done a
> scientific study--I've onlyheard from an increasing number of
> Australians
> who say that favorite-burial isn't uncommon in IRV.
> People fear that they'd "waste [their] vote" if they didn't
> vote one of the
> Big-Two party candidates in 1st place, with their favorite
> ranked somewhere
> below. What does it take to convince you? Ok, a scientific
> study. Maybe
> someday someone will conduct one. In the meantime, I've heard
> from a number
> of Australians.
>
> You wrote:
>
> I'm trying to see how this:
> "If a Condorcet candidate exists, and if a majority prefers this
> candidate to another candidate, then the other candidate
> should not win
> if that majority votes sincerely and no other voter falsifies any
> preferences."
>
> .../always/ leads to this:
>
>
> "SFC requires that the majority of voters who prefer the Condorcet
> candidate to another particular candidate vote sincerely (neither
> falsify nor truncate their preferences), and it also requires that no
> other voter falsifies preferences"
>
> I reply:
>
> First, please note that I don't recognize either of those
> wordings as mine.
> So, if one doesn't lead to the either, and neither was said
> by me, then what
> does that say about SFC? Nothing.
>
> That first SFC definition that you quoted is definitely not
> my wording. Your
> 2nd statement of course is not a definition of SFC, and so
> there would be no
> reason to expect it to mean the same as the previous wording
> that someone
> intended as a definition of SFC.
>
> I would probably say that SFC _stipulates_ sincere voting by
> that majority,
> rather than using the word "require". That's because, as I
> use the term, a
> criterion's requirement is something else. SFC's requirement
> is that B not
> win. That that majority vote sincerely is a stipulation that
> is part of
> SFC's premise.
>
> In any case, you needn't expect an intended definition of SFC
> to mean the
> same as a wording of part of SFC's premise, which is only part of SFC.
>
> Anyway, here's SFC:
>
> If no one falsifies a preference, and if a majority prefer the CW to
> candidate B, and vote sincerely, then B shouldn't win.
>
> [end of SFC definition]
>
> Please, in the future, when challenging SFC, refer to _my_
> wording of its
> definition.
>
> You continued:
>
> MDDA would seem to encourage truncation in rare situations.
>
> I reply:
>
> Perhaps, but MDDA also encourages truncation in common
> situations. With
> ordinary MDDA, you should rank only those candidates to whom
> you want to
> give an Approval vote.
>
> And, aside from that, if it's an acceptable/unacceptable
> situation, even
> with Deluxe MDDA, which has a separate Approval cutoff and
> power truncation,
> you should power truncate all the unacceptables.
>
> You continued:
>
> I agree that SFC is a very important criterion, if perhaps misnamed.
>
> I reply:
>
> The name refers to the fact that the criterion is about
> plausible conditions
> under which, with complying methods, voters need no strategy
> in order to
> accomplish the specified goal.
>
> You continued:
>
> I'm sure there were long discussions about naming it during the long
> period where I wasn't very active on the list.
>
> I reply:
>
> Some people objected to the name, on the grounds that it's
> been proven that
> no nonprobabilistic method is entirely strategy-free. But
> that objection
> isn't valid, because the criterion is about conditions under
> which voters
> can accomplish a specific goal without strategy.
>
> You continued:
>
> This may be a seemingly minor quibble, but I raise this because I
> consider the two SFC quotes above to both be very important criteria,
> and I'm trying to figure out how both apply to MDDA.
>
> I reply:
>
> I don't claim that those two quotes apply to MDDA, but I do
> claim that my
> SFC definition applies to MDDA, in the sense that MDDA meets
> that criterion.
>
> I'd said:
>
> >Realistically, I propose RV, with more rating-levels than Approval.
>
> Range is a political stillborn. This example kills it:
>
> 100 voters, two candidates, scale of 0-10:
>
> 90 voters: A=7, B=6
> 10 voters: A=0, B=10
>
> A:630
> B:640
>
> B wins, even though 90% of voters prefer A to B.
>
> I reply:
>
> But how is that a problem? The A voters didn't feel strongly
> about A vs B,
> and they therefore chose to not dominate the choice. They
> chose to let the
> choice be made by someone who felt more strongly than they did.
>
> For a 2-candidate race, obviously neither RV, Approval,
> BeatpathWinner,
> MDDA, nor any other improved voting system is needed. But all
> of those
> methods work fine with two candidates.
>
> You continued:
>
> There is no possible way Range will ever get serious support
>
> I reply:
>
> RV is well known and well-accepted in the Olympics. Everyone
> is familiar
> with being asked to rate things up to 10. RV has a big
> head-start on new
> methods such as BeatpathWinner, Approval, or IRV.
>
> You continue:
>
> , given that
> weakness.
>
> I reply:
>
> No one is forced to vote sincerely if they want to maximize
> their voting
> power, their power to maximize their expectation.
>
> Of course BeatpathWinner has advantages (Condorcet's Criterion, Smith
> Criterion, WDSC, SDSC, but especially SFC & GSFC,). But that
> isn't the same
> as saying that RV has a serious problem. Anyway,
> BeatpathWinner fails FBC.
>
> You continue:
> If it manages to pass constitutional muster, it goes against
> what I suspect is the instinct of most voters out there, including
> myself.
>
> I reply:
>
> The instinct to not let a set of voters indicate the strength
> of their
> preference, choosing to vote a weak preference in order to let more
> choice-power be had by people to whom the choice is more important?
> Shouldn't they be free to do as they wish? They could strategize, to
> maximize their applied strength, if they wished to.
>
> Mike Ossipoff
>
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