[EM] Re: Chris, Range-Voting
Chris Benham
chrisbenham at bigpond.com
Tue Jan 4 07:52:42 PST 2005
Mike Ossipoff wrote (Sat.Jan1), beginning with a quote from my post of
the same date:
>You continued:
>
>To cheerfully assert, as W.D. Smith does, that "minimizing Bayesian
>regret" trumps majority rule is tantamount to saying
>that more emotional voters should have more power than less emotional
>voters, which in my view is nonsensical and unfair.
>
>I reply:
>
>Range-Voting (also known as CR) doesn't give more power to one voter than to
>another.
>
>In fact, opposite to what you imply, with CR, the less emotional, more
>strategic, voter will use his power more effectively. That's his business.
>If the sincere voter wants to give up some strategic power in order to rate
>sincerely, that too is his business.
>
CB: I don't see how it is possible to flout Majority Favourite,
Condorcet Loser etc. without "giving more power
to one voter than to another". To me, a voting method should in the
first place work well if all the voters vote
sincerely. It should try to minimize the advantage strategists have
over sincere voters. It shouldn't encourage
strategising, and it shouldn't assume all the voters are strategists.
So I wasn't referring to strategists, only sincere voters. Smith writes
somewhere that RV works perfectly to
minimize "regret" if all the voters are sincere. Those voters whose
sincere ratings (or "private mental opinions about the
numerical utility of each candidate's possible election victory") are
the most extreme and so always give their favourite
the maximum possible rating and their least preferred candidate the
lowest possible rating are the "more emotional"
sincere voters I referred to who are given more power than "less
emotional" sincere voters who don't vote that way.
Mike again:
>You continued:
>
>No voting method is invulnerable to informed strategy, but meeting No
>Zero-Information Strategy is very easy to meet, so
>why not at least achieve that? RV doesn't.
>
>I reply:
>
> "Even"? :-) Meaning that you think that CR doesn't achieve anything else?
>If that isn't what you mean, then what do you mean?
>
CB: I consider failing "No Zero-Information Strategy" (which is a
strong version of Blake Cretney's "Sincere
Expectation Criterion") to be silly and unfair; and since it seems
very easy for a method to meet , then it should
do so. The "at least" refers to it being easy to meet, while "No
(Informed) Strategy" is impossible.
Chris Benham
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