<div dir="auto">Yes, that's the only one ... and it's the one I mentionedwhen Markus expressed doubt about the existence of a monotonic Landau efficient method.<div dir="auto"><br></div><div dir="auto">It took another decade to get a UD Landau method that was both monotone and clone independent.</div><div dir="auto"><br></div><div dir="auto">The first such method was Agenda Based Chain Climbing based on a truncation/abstention count agenda.</div><div dir="auto"><br></div><div dir="auto">I look at Friendly Voting methods as decloned versions of Copeland.</div><div dir="auto"><br></div><div dir="auto">They seem to have more class than ABCC in many ways, including good potential for Independence from Pareto Dominated Alternatives, but hard to make both Decisive and Clone Free in a satisfactory way without more than one pass through the ballots or explicit strong approval cutoffs (as opposed to implicit/ weak approval or strong equal-top rankings) as a good basis for Martin Harper Lottery Probabilities to replace the random ballot favorite probabilities (fpA, fpC, etc.) normally used in Friendly Voting to declone Copeland.</div><div dir="auto"><br></div><div dir="auto">[Without explicit strong approval cutoffs it takes one pass through the ballots to find out who the Smith candidates are ... and if the median ranked Smith candidate on a ballot should be an inclusive or exclusive approval cutoff candidate.]</div><div dir="auto"><br></div><div dir="auto">-Forest</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Feb 25, 2023, 2:52 AM Kristofer Munsterhjelm <<a href="mailto:km_elmet@t-online.de">km_elmet@t-online.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 2/25/23 00:49, Forest Simmons wrote:<br>
<br>
> Who can name even one commonly known election method that is Landau <br>
> efficient?<br>
<br>
Copeland! And Copeland,X or Copeland//X. Aren't they?<br>
<br>
> What's more ... no matter the nominal "worst" criterion, the method will <br>
> be more or less burial resistant ... as I will explain presently.<br>
<br>
I hope someone can show that with simulation. My experiments seem to <br>
show that's a pretty rare condition :-) Unless it's like max A>B, where <br>
there's no burial but tons of compromising to make up for it.<br>
<br>
-km<br>
</blockquote></div>