Re: [EM] Election-Methods Digest, Vol 103, Issue 1

2013-01-07 Thread Andy Jennings
Jonathan,

In addition to Ualabio's argument that cutting down the number of
candidates is good so as not to overwhelm voters, I believe that almost
every voting system ever invented can benefit from winnowing down
candidates that are _too similar_ before the election.  Political parties
seem like the natural steward of this responsibility.

For reforming partisan elections, I promote approval voting in the primary
and approval voting in the general.  Also acceptable would be approval
voting in the general and letting the parties choose their nominees however
they like.

To me, this means that those who vote in one party's primary should be,
generally, of a shared ideology.  They should be the guardians of that
party's label in the general election.  Voters should choose to participate
in the party primary for the ideology they are closest to.  If they feel
divorced from both (or all) parties, then they can refuse to participate in
the primary.  Then they should focus on getting a good independent
candidate to run.  The good news is that with approval voting, independents
will do much better in general elections.

I don't really see a good way for voters to support one person in the
Republican primary and another person in the Democratic primary at the same
time.

~ Andy


On Sat, Jan 5, 2013 at 9:12 AM, Jonathan Denn i...@agreater.us wrote:

 Greetings!

 As I've mentioned previously, I am on the board of a nonprofit that will
 be announcing a Clean Government Alliance shortly. It will have two
 prominent far left/ far right reformers, probably another pair of center
 left/right will be joining them. The purpose is to draft a Constitutional
 Amendment for omnibus electoral reform. For these people everything is on
 the table. We had to pass on another household name because that person
 wouldn't put Term Limits on the table.

 I have been flying your flag: Ban Single Mark Ballots, and I have to say,
 that these sophisticated folk need it explained to them. Anyway, and I have
 asked this question before, What is the solution for primaries?

 This is the biggest open item in the work that has to be done. 40% of
 the electorate are independents, probably centrists. We cannot vote in
 primaries in almost all states. It's a gaping yaw in a democratic republic.

 I've used this example before. I did live in CT until a few weeks ago, now
 MA, in the last Senate election there was a great Republican Brian K Hill,
 a reformer. And the former Democratic Sec of State Susan Byceiwicz was also
 an interesting candidate. I would have liked to vote for both in the
 primary, and would have loved to seen them in the general election against
 each other. Instead we had a plutocrat running against a billionaire. In
 the end the oligarchs won.

 I expect the amendment will begin being drafted in DC in a few weeks, so
 please, load me up with the arguments.

 Cheers,
 Jon Denn
 @jmdenn



 
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[EM] Survey of Multiwinner Methods

2013-01-07 Thread Greg Nisbet
Hey, I'd like to get a sense of what sorts of multiwinner methods are
currently known that are reasonably good and don't require districts,
parties, or candidates that are capable of making decisions (I'm looking at
you, asset voting).

I had an idea for a variant of STV where the elimination order for
candidates is the reverse of how often they are approved (i.e. given a rank
on the ballot instead of no rank). This method may already have been
proposed some time ago, but I think it warrants attention regardless. This
somewhat changes the interpretation of an STV ballot because a truncated
ballot is no longer strictly less powerful than a non-truncated one. Since
the elimination order is fixed from the beginning and doesn't depend on
subsequent decisions, I suspect this modification to STV would at least
reduce non-monotonic behavior (however one might quantify degree of
monotonicity).

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[EM] Comments on MJ discussion

2013-01-07 Thread Michael Ossipoff
 Removing a losing candidate from the ballots and from the election,
 and then re-counting the ballots, shouldn't change the winner.

 Approval and Score pass.


Michael, I find it very inconsistent for you to argue so adamantly for
voters to use maximal strategy

[endquote]

I was just saying that there's no reason to expect people to vote
other than optimally, based on their perceptions. A voting system
shouldn't be promoted based on an assumption of suboptimal voting.

You continued:

and then to use a criterion that doesn't
allow them to adjust their ballot when one candidate is dropped.

[endquote]

Suppose we held an election, and the Democrat won, and right after the
election the Republican said I want to retroactively withdraw from
the election. Let's pretend that I hadn't been in the election. I want
you to conduct another balloting, without me in the election.

For one thing, of course s/he wouldn't do that. And, if s/he did, we
could reasonably say, Well, you should have thought of that sooner,
shouldn't you.

But, at least in that instance, another election would be fine with
me, because a lot of progressives would vote Green instead of
Democrat.

But I can't say that a withdrawer has a right to insist on a new
election. Of course s/he certainly has a right to advocate one, and
circulate initiative petitions calling for an up/down vote on holding
a new election.

But that isn't really the issue of IIAC.

IIAC merely says that removal of a losing candidate shouldn't change
the result.

IIAC says nothing about whether there should be another election if a
losing candidate calls for one without hir in it..

IIAC is merely about consistent count-mechanics, given an unchanging
set of ballots.

Mike Ossipoff






If voters even do so much as re-normalize their ballot when a losing
candidate is dropped, that can ruin independence of irrelevant alternatives.

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Re: [EM] Comments on MJ discussion

2013-01-07 Thread Andy Jennings
 IIAC merely says that removal of a losing candidate shouldn't change
 the result.

 IIAC says nothing about whether there should be another election if a
 losing candidate calls for one without hir in it..

 IIAC is merely about consistent count-mechanics, given an unchanging
 set of ballots.


Well, you're arguing for a definition of IIAC that even plurality passes.

I find it lacking, and do not accept it for my definition of independence
of irrelevant alternatives.

~ Andy

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[EM] Comments on MJ discussion (IIAC)

2013-01-07 Thread Michael Ossipoff
Andy:

 IIAC merely says that removal of a losing candidate shouldn't change
 the result.

 IIAC says nothing about whether there should be another election if a
 losing candidate calls for one without hir in it..

 IIAC is merely about consistent count-mechanics, given an unchanging
 set of ballots.


Well, you're arguing for a definition of IIAC that even plurality passes.

Yes. One nice thing about Approval and Score is that they pass every
criterion that Plurality passes.

That can't be said for MJ or any Condorcet version.

That means that no one can say that there is any way in which Approval
or Score could be called worse than Plurality. That's important for
enactment proposals.

I think that my definition of IIAC is only one that's been precisely
and completely defined.

You continued:

I find it lacking

[endquote]

It isn't the most demanding criterion, and it's met by Plurality, and
so no one can claim that meeting IIAC makes a method adequate.

In fact, meeting IIAC, Participation, Mono-Add-Top,
Mono-Add-Unique-Top, Consistency, Non-Dictatorshiip and Mono-Raise
obviously doesn't make a method adequate, since Plurality meets all of
those criteria.

But just because Plurality meets a criterion doesn't make it
irrelevant. Non-Dictatorship is a desirable criterion, even though
Plurality meets it.
.
You continued:

, and do not accept it for my definition of independence
of irrelevant alternatives.

[endquote]

But won't it have to do until someone offers a different complete and
precise definition of IIAC?

I have nothing against there being two kinds of IIAC. They'd have to
be named differently. Maybe the new one could be called Strong IIAC.

It might be a very desirable and worthwhile criterion, when someone
defines it. If someone already has, I invite someone to post it.

Mike Ossipoff

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Re: [EM] Survey of Multiwinner Methods

2013-01-07 Thread Abd ul-Rahman Lomax

At 04:04 PM 1/7/2013, Greg Nisbet wrote:
Hey, I'd like to get a sense of what sorts of multiwinner methods 
are currently known that are reasonably good and don't require 
districts, parties, or candidates that are capable of making 
decisions (I'm looking at you, asset voting).


Right. We only want to elect candidates not capable of communicating 
and negotating on behalf of the public.



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Re: [EM] Survey of Multiwinner Methods

2013-01-07 Thread Jameson Quinn
2013/1/7 Greg Nisbet gregory.nis...@gmail.com

 Hey, I'd like to get a sense of what sorts of multiwinner methods are
 currently known that are reasonably good and don't require districts,
 parties, or candidates that are capable of making decisions (I'm looking at
 you, asset voting).


Like Abd, I wonder at the basis for your criteria. I think that for reform
in most English-speaking countries, districts are usually an advantage,
parties arguably so, and intelligent candidates always.

Also, this thread gives me an excuse to mention a thought I've recently
had. In between purely majoritarian methods and truly proportional ones,
there is a third option: median-preserving ones. That is, the legislature
is not proportional, but if the voters and candidates are on a 1D (or
N-dimensional single-peaked?) spectrum, then the median representative in
the winning set is the one closest to the median voter in the electorate.
The only example I've thought of so far is NP-complete (MJ ballots, each
voter has their individual threshold set as high as possible so that they
approve 1/2 of the winning slate) but I'm sure that there are other methods
which would do this. And such methods might have political advantages in
certain contexts.

Jameson


 I had an idea for a variant of STV where the elimination order for
 candidates is the reverse of how often they are approved (i.e. given a rank
 on the ballot instead of no rank). This method may already have been
 proposed some time ago, but I think it warrants attention regardless. This
 somewhat changes the interpretation of an STV ballot because a truncated
 ballot is no longer strictly less powerful than a non-truncated one. Since
 the elimination order is fixed from the beginning and doesn't depend on
 subsequent decisions, I suspect this modification to STV would at least
 reduce non-monotonic behavior (however one might quantify degree of
 monotonicity).


 
 Election-Methods mailing list - see http://electorama.com/em for list info



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Re: [EM] Survey of Multiwinner Methods

2013-01-07 Thread Andrew Myers

On 1/7/13 4:04 PM, Greg Nisbet wrote:
Hey, I'd like to get a sense of what sorts of multiwinner methods are 
currently known that are reasonably good and don't require districts, 
parties, or candidates that are capable of making decisions (I'm 
looking at you, asset voting).
I will once again mention that there is a Condorcet multiwinner method 
implemented in the CIVS voting system that you can try out right this 
instant if you are so inclined. In fact, this proportional method gets 
used pretty frequently by the rather numerous CIVS users.


  See: http://www.cs.cornell.edu/w8/~andru/civs/proportional.html

By the way, I am happy to host other methods if people want to integrate 
them into the CIVS code base, which is publicly available.


-- Andrew
attachment: andru.vcf
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Re: [EM] Survey of Multiwinner Methods

2013-01-07 Thread ⸘Ŭalabio‽
2013-01-07T01:04:52Z, “Greg Nisbet” gregory.nis...@gmail.com:

   Hey, I'd like to get a sense of what sorts of multiwinner methods are 
 currently known that are reasonably good and don't require districts, 
 parties, or candidates that are capable of making decisions (I'm looking at 
 you, asset voting).

¡KISS!:
¡Keep It Simple, Oh Stupid!

I would stick with Asset-Voting.  It is a good thing that you look at 
Asset-Voting already.

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