[Election-Methods] Simple two candidate election

rob brown rob at karmatics.com
Thu Dec 20 10:59:00 PST 2007


My understanding has been that in a simple two candidate election,
there isn't any need for alternative election methods, and all the
issues that condorcet/approval/range etc attempt to solve simply
disappear.  A plain old majority vote is "perfect", as long as there
really are only two candidates.  There is no conflict between strategy
vs. sincerity, and there is a single Nash equilibrium -- which is
simply that everyone picks the candidate they prefer.

Is this controversial?  For instance, could a two candidate election
be improved by, say, collecting information about how *much* each
voter likes or dislikes the candidates in question?  Assuming at least
some honest voters, this approach might be able to improve the
"maximum net tangible utility" ("tangible" meaning we are only
counting the happiness with the results themselves, and ignoring such
less-measurable utility such as "feeling of fairness" or "elimination
of resentment" or "long term satisfaction with the election process
itself").

 My own opinion has always been that the (perceived?) fairness of
"everyone's vote counts the same" outweighs any desire for "maximum
net tangible utility."  I'd even go so far as to say that this would
be true even if we knew all votes were honest (say we put everyone on
a perfectly accurate lie detector).

So, I am quite happy with plain old majority vote for a two candidate
election.  But I am encountering those who seem to disagree with this,
and who don't seem to have the same concept of "fairness" as I do.
I'm curious if people here see this as a legitimately controversial
issue.

 Thanks,
 -rob

----
various voting related stuff at karmatics.com:
 http://karmatics.com/voting/movienite.html
 http://karmatics.com/voting/bargraphs.html
 http://karmatics.com/voting/bars-demo.html
 http://karmatics.com/voting/rank.html

 http://karmatics.com/docs/collective-self-interest-fallacy.html
 http://karmatics.com/docs/evolution-and-wisdom-of-crowds.html



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