[EM] IRV vs RCV

[robert bristow-johnson]

> On December 17, 2019 2:12 AM Rob Lanphier <robla at robla.net> wrote:
> 
>  
> On Sat, Dec 14, 2019 at 7:21 AM robert bristow-johnson
> <rbj at audioimagination.com> wrote:
> > > On December 14, 2019 2:44 AM Rob Lanphier <robla at robla.net> wrote:
> > > I also like Ranked Pairs, but
> > > I suspect that all of the methods that pick a candidate out of the
> > > Smith set are indistinguishable in real-world conditions.  My hunch is
> > > that an analysis of the public elections that had ranked ballots would
> > > reveal that all of them had a single Condorcet winner,
> >
> > except, of course, Burlington Vermont 2009.
> 
> I'm pretty sure all of the Condorcet-winner compliant methods chose
> Andy Montroll, given the ballots from the Burlington 2009 election.
> Copeland, Schulze, Ranked Pairs,  etc.  Was there a discrepency
> between Condorcet methods, or just the well-documented discrepency
> between the Condorcet methods and IRV?

i misunderstood you.  we're on the same page.  yes, Burlington 2009 had a single, clear Condorcet winner.

it was the only IRV election that i know of where the Condorcet winner was not elected.


--
 
r b-j                  rbj at audioimagination.com
 
"Imagination is more important than knowledge."