[EM] FBC, center squeeze, and CD

[C.Benham]

The example I just posted of  "IBIFA with an anti-defection device"  
failing FBC I'm afraid also works for both Mike's suggested
"Conditional Bucklin" and Forest's suggested "TopMiddleBottom".

20: F=C >>B
07: F > C=B   (or, for the sake of Forest's method suggestion, F >> C=B)
25: B
48: W

All three of these methods elect W, but if the 20 F=C >> B voters change 
their rating of F from Top to Middle or Bottom
then the winner changes to B.

Chris Benham


On 11/6/2016 12:10 PM, Michael Ossipoff wrote:
> Hi Forest--
>
> By "vote-receiving", I just wanted that to refer to the candidate 
> who's being considered for receiving the conditional vote.
>
> Jameson has just demonstrated that my Conditional Approval fails FBC.
>
> Most likely, that means that my Conditional(u) Bucklin fails FBC too.
>
> Now, hopefully your proposal, &/or Chris's Unconditional Bucklin 
> passes FBC.
>
> I've just now found your posting. I hope that your method or Chris's 
> meets FBC.
>
> Michael Ossipoff
>
>
> On Sat, Nov 5, 2016 at 6:56 PM, Forest Simmons <fsimmons at pcc.edu 
> <mailto:fsimmons at pcc.edu>> wrote:
>
>
>
>         Because it's so brief, let me state the conditional(u) option, for
>         Approval, and for Bucklin:
>
>         Approval:
>
>         If a ballot conditionally approves a candidate, then it gives
>         an approval
>         to that candidate only if that vote-receiving candidate has more
>         unconditional approvals than does any candidate
>         unconditionally approved by
>         that ballot.
>
>
>     I don't see the purpose of the qualifier "vote-receiving;" It
>     seems to me that if a candidate has more (unconditional) approvals
>     than some other candidate, then it is ipso facto "vote-receiving."
>
>
>     It could also be called TopMiddleBottom.
>
>     Voters mark candidates Top, Middle, or Bottom., with default Bottom.
>
>     In the first round count, ballots contribute support only to their
>     Top rated candidates. Then if (on some ballot) a Middle rated
>     candidate has a better chance of winning (according to the first
>     round totals) than any candidate that is Top rated by that ballot,
>     then that ballot promotes that candidate to Top status for the
>     purposes of the final count.
>
>     In other words, the Middle mark is a fall-back or conditional
>     approval mark.
>
>
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