[EM] Schwartz Criterion & Tideman

[MIKE OSSIPOFF]

Dear Markus--

Like every BC-complying method, Tideman(wv) will never choose
outside the Schwartz set when there are no pairwise ties or
equal defeats.

So, for the purpose of public elections, Tideman(wv) doesn't choose
outside the Schwartz set, and so, for the purpose of a public proposal,
Tideman has no fault in that regard.

***

The fact that it can do so in small committee votes counts against
it, in comparison to Schulze's method, but that doesn't mean that
it counts decisively against it for small committees. Schulze vs
Tideman(wv) for small committee votes is an open issue, with
different considerations favoring both methods.

Mike Ossipoff

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