[EM] Kemeny challenge

[Richard Fobes]

On 9/14/2011 11:31 AM, Peter Zbornik wrote:
> Dear all,
>
> Some weeks ago, I showed how to complete incomplete ballots by adding
> the null candidate (i.e. the option "none of the above") with lower
> rank than the ranked candidates and equally ranking the unranked
> candidates below the null candidate.  This ballot completion method
> gives the same result for winning votes and margins for Condorcet
> elections,
>
> I guess the comment the Kemeny method not being able to handle
> incomplete ballots, does not apply if the ballot completion method
> above is used.
>
> Best regards
> Peter Zbornik

As Peter points out, incomplete ballots are not a problem with the 
Condorcet-Kemeny method.

Any unmarked candidates/choices are regarded as being at the same 
preference level at the bottom of the ranking.

Richard Fobes