[EM] Need IRV examples; voting show

[Bart Ingles]

The issue is that H wins BOTH precincts, but still loses the combined
election.  That's the definition of consistency as applied to voting
systems.  It seems to me to be related to monotonicity violations.

I think the question is not so much whether the individual precinct
results are relevant, as what it says about the rationality of the
voting system in use.

For example, instead of precincts, suppose the division is between
walk-in and absentee votes, or between election-night and recount
results.  Imagine candidate A being declared the winner, with a recount
turning up additional votes supporting A, thereby causing A to lose.  I
think this would undermine public acceptance of the outcome, especially
given the recent hysteria surrounding the U.S. electoral college.  The
answer might be to keep all preliminary results secret, but I'd be more
comfortable if that weren't necessary.

Bart


James Gilmour wrote:
> 
> Forest wrote:
> 
> > Rob here's an inconsistency example adapted from message 7642 of the EM
> > archives:
> >
> > First Precinct:
> >                 190 SHA
> >                 140 HAS
> >                 120 AHS
> >
> > Second Precinct:
> >                 150 SHA
> >                 170 HAS
> >                 230 AHS
> >
> > According to IRV, candidate H wins decisively in both precincts,
> > but (according to IRV) candidate A wins decisively when the results from
> > both precincts are combined.
> >
> 
> Maybe I'm missing something, but I don't see the inconsistency here at all.
> 
> You either have two separate elections (Precinct 1 and Precinct 2) OR you have one
> election in which electors happen to vote within their local precincts.
> 
> If you have ONE election (precincts combined), the "results" within any individual
> precinct are irrelevant.  Only one result matters - the result obtained by
> tabulating all the votes together.
> 
> It should be no surprise to anyone that if you subsequently cut some sub-sets from
> the whole set, you can get all sorts of different "results".  But none of these is
> relevant to the election.
> 
> James
> 
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