[EM] Open letter to STAR voting promoters
Richard, the VoteFair guy
electionmethods at votefair.org
Thu Jun 6 21:21:11 PDT 2024
On 6/4/2024 8:19 PM, Closed Limelike Curves wrote:
< ...
> So, I suppose my real question is: is there any voting system
> that satisfies both properties? Sincere favorite and
> later-no-help are enough for voters who follow good polls to
> work out the Condorcet winner, by making min-maxing the
> optimal strategy. On the other hand, I don't know
> if they're necessary or if they're compatible with honesty in the
> zero-information case.
Since you seem to have asked me this question, and no one else has
answered it, I'll say ...
I believe that attempting to "satisfy both properties" is likely to
increase the failure rates of yet other fairness criteria.
To me, a zero failure rate and a one-in-a-hundred-thousand failure rate
are not significantly different. Both are close enough to zero to not
be a concern in elections.
> The place where this is bad is the zero-information setting. True
> zero-info almost never exists, but low-information settings crop up if
> you have a sincere Condorcet cycle, several clones, or a nonpartisan
> local election. In these settings, it would be very nice to have
> voters be perfectly honest.
I believe we should expect that in the future there will be better
opinion polls that provide more information for governmental elections.
In other words, zero information elections will become rare -- if the
outcome is important, as it is in governmental elections.
I think honesty would be very nice in every setting. But getting
honesty requires using rules that don't motivate voters to vote dishonestly.
In other words, if there's a way to cheat, cheating will occur.
Richard Fobes
the VoteFair guy
On 6/4/2024 8:19 PM, Closed Limelike Curves wrote:
> * Every cardinal/rating method I know of is vulnerable to what used to
>
> be called a "drama queen" meaning someone who exaggerates importance.
> Expressed another way ...
>
> I'm very interested in fleshing this out a bit more. In some situations,
> this is the main drawback of score voting; min-maxing means your ballot
> expresses less information than a full ranking and produces worse
> results than most Condorcet methods. But in other situations, this is a
> huge strength of rated voting that I think we really need to keep.
>
> The place where this is bad is the zero-information setting. True
> zero-info almost never exists, but low-information settings crop up if
> you have a sincere Condorcet cycle, several clones, or a nonpartisan
> local election. In these settings, it would be very nice to have voters
> be perfectly honest.
>
> The place where this is good is in the high-information setting where
> voters follow the polls, or know . Then, every "sensible" voting method
> will encourage exaggeration: if you rank or rate the best frontrunner at
> the top, this maximizes your support for them, and therefore your impact
> on the election. Similarly, ranking or rating a candidate last minimizes
> your support for them.
>
> The only difference in the case of cardinal/rating methods is you can do
> this without being forced to engage in order-reversal. This is a big
> f*cking deal. Lots of voters will refuse to engage in decapitation
> to protect a Condorcet winner (e.g. Begich in Alaska): it's
> counterintuitive, makes voters feel icky, and reduces their favorite
> candidate's shot at winning. Even if they /were/ willing, this kind of
> dishonest order-reversal strategy can make it impossible to identify the
> sincere Condorcet winner. ("Hmm, is RFK Jr. trailing because of
> the brain worm or the major parties burying him?")
>
> In high-information situations, this kind of approval-thresholding is
> the least-damaging kind of strategy:
> 1. It's simple and obvious, so parties can't manipulate voters by lying.
> 2. It has a single stable equilibrium point, so you don't need money or
> party endorsements to prove you're a viable candidate.
> 3. It's sincere, so it lets you identify the Condorcet-winner and the
> Condorcet runner-up.
> 4. It guarantees that if voters follow the polls, they'll choose the
> Condorcet winner.
>
> So, I suppose my real question is: is there any voting system that
> satisfies both properties? Sincere favorite and later-no-help are enough
> for voters who follow good polls to work out the Condorcet winner, by
> making min-maxing the optimal strategy. On the other hand, I don't know
> if they're necessary or if they're compatible with honesty in the
> zero-information case.
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