# [EM] Voting systems theory and proportional representation vssimple representation. (Abd ul-Rahman Lomax)

Kathy Dopp kathy.dopp at gmail.com
Mon Mar 15 00:09:24 PDT 2010

```Yikes Raph. I didn't know that the method was potentially
nonmonotonic.  I oppose all nonmonotonic methods.

I would think that you could simple set a threshold number of votes to
win a seat and then redistribute all excess votes for candidates to
the 1st candidates on their own lists, then redistribute all the
excess votes that resulted from that redistribution, etc. until there
are no excess votes and all positions are filled.

It does sound a little complicated though, sortof like IRV for
candidates rather than for voters.  Is it fair and equal for all
candidates?  I don't have time to sit and think about it right now.
Thanks for mentioning its possible nonmonotonicity.

Yes, it would be much more complex than party list systems where none
of the candidates were on more than one party list, but what about
party list systems with shared candidates?  That might have the same
sort of complexity problems.

Sigh. too busy and tired to think about it now.

Cheers,
Kathy

On Sun, Mar 14, 2010 at 8:17 PM, Raph Frank <raphfrk at gmail.com> wrote:
> On Mon, Mar 15, 2010 at 12:04 AM, Terry Bouricius
> <terryb at burlingtontelecom.net> wrote:
>> Ralph is describing the open list system used in such places as the
>> Netherlands (nation-wide) and Finland (regionally).
>
> I was thinking of a system with 1 list per candidate, rather than 1
> list per party.  This gives the voters more choice.
>
> Open list works the same, except that there is only 1 list per party.
>
> However, combining candidate lists in a monotonic way would be difficult.
>
> The tree method would have seats distributed between the parties and
> then within the various "wings" of the parties based on how many votes
> each party/wing/candidate obtained.
>

--

Kathy Dopp
http://electionmathematics.org
Town of Colonie, NY 12304
"One of the best ways to keep any conversation civil is to support the
discussion with true facts."

Realities Mar Instant Runoff Voting
http://electionmathematics.org/ucvAnalysis/US/RCV-IRV/InstantRunoffVotingFlaws.pdf

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