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<br>I've mentioned that I like that Bucklin gives 3 protection levels (to be defined later in this post). There are other methods<br>that give that too, along with passing FBC.<br><br>Because there are a number of methods giving those 3 protection levels, I'd like to give them a name.<br><br>I'll call them 3P methods. They meet the 3P Criterion.<br><br>Definition:<br><br>A method is 3P, and meets the 3P Criterion if, with that method, there are three "protection-levels" (referred to<br>here as "top", "middle", and "bottom"), such that each voter can "protect" any set of candidates at top, and<br>can simultaneously protect any other set of candidates at middle.<br><br>To protect a set of candidates at a particular protection level means to vote in such a way that, if a majority<br>voted in that way, no candidate whom that majority didn't protect at that level or higher can't win.<br><br>[end of definition of 3P methods and 3P criterion]<br><br>A method is a 3PD method, and meets the 3PD criterion, if it allows a voter to discriminate among candidates<br>whom s/he protects at at least one of the upper 2 protection-levels.<br><br>[end of definition of 3PD methods and the 3PD criterion]<br><br><br>Some methods meeting 3P:<br><br>Bucklin, MDDA, MAMPO, DP (proposed by Chris Benham, defined later), MCA, <br><br>Some methods meeting 3PD:<br><br>Bucklin, MDDA, MAMPO<br><br>3PD methods can be compared according to in what way the method allows the voter to discriminate<br>among candidates s/he protects at some non-bottom protection level. I haven't looked at that.<br><br>I don't know if MMPO meets FBC, but it fails 3P, and I (for the 2nd time) abandon MMPO.<br><br>I'm still visiting, and I promised my girlfriend that I'd only post this quick note, and that I would not<br>look at the mailing list or my inbox right now. I might get a chance to get back to the computer<br>later today. If not, then tomorrow for sure.<br><br>Mike Ossipoff<br><br><br><br> </div></body>
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