Voting experiment

• From: Charles McCathie Nevile <chaals@yandex-team.ru>
• Date: Wed, 09 Jul 2014 22:04:00 +0200
• Message-ID: <op.xiqx0yqdy3oazb@chaals.local>
```Hi folks,

I have an outstanding action item from the AB to propose a voting
experiment that could be considered for running as part of elections (eg.
TAG/AB elections).

My strawman proposal:

The purpose of the experiment is to enable W3C Team to gather data on
whether a different voting system to our current "Multiple
Non-Transferable Vote" system would change the outcome of elections, and
in particular, in ways that might make elected groups more broadly
representative of the voters.

In elections for the AB and TAG, we provide a ballot that offers two ways
to vote.

1. The current system - you select up to the number of seats available,
from the candidates running.
This would be the binding vote - unless we change the process we can't
change that anyway.

2. You can rank as few or as many candidates, plus the option "no (other)
candidate". as you want, in preference order.

1 indicates your most preferred candidate. Giving two or more candidates
an equal rank is a rational statement, and results should be calculated
accordingly.

A completed ballot for 3 seats with 6 candidates could be like:

check         Candidate name        Preference
up to 3                             order
[ ]            Alice                   [1]
[X]            Byron                   [2]
[ ]            Charlie                 [ ]
[ ]            Daniels                 [3]
[X]            Elliott                 [4]
[ ]            Franklin                [ ]
No (other) Candidate    [5]

(In a real vote, the order of names should be randomised. Not that we do
that now).

A vote for "No (other) candidate" [0] would be considered a vote for a
hypothetical alternative instead of a vote being "exhausted" (as happens
if all the candidates voted for by a single voter have been determined as
elected or not before the completion of counting). A candidate beaten by
the hypothetical alternative would not be considered elected.

The results of this ranking can be used to asses the results we would get
by using simple "Single Transferable Vote" [1], "Schulze STV" [2]. There
are several ways to use votes as indicative of likely results from
"Approval Voting" [3], although they are less reliable than the other
information we would get from the survey.

In addition we can use the first preference to approximate the results we
would get using "single non-transferable voting" [4] (where each voter can
only vote for one candidate).

I note that if we used preference ranking for other votes, we would also
be able to look at the effect of systems explicitly designed to rank
outcomes, such as STV or Schulze STV. However this proposal neither
requires nor prohibits doing do.

[0] This is related to http://en.wikipedia.org/wiki/None_of_the_above
[1] http://en.wikipedia.org/wiki/Single_transferable_vote
[2] http://en.wikipedia.org/wiki/Schulze_STV
[3] http://en.wikipedia.org/wiki/Approval_voting
[4] http://en.wikipedia.org/wiki/Single_Non-Transferable_Vote

cheers

Chaals

--
Charles McCathie Nevile - web standards - CTO Office, Yandex
chaals@yandex-team.ru         Find more at http://yandex.com
```

Received on Wednesday, 9 July 2014 20:04:29 UTC