[EM] RP vs River

[Monkey Puzzle]

Michael,

Some of the answers you seek can be found here:

http://wiki.electorama.com/wiki/River


On Sun, Nov 3, 2013 at 8:36 AM, Michael Ossipoff <email9648742 at gmail.com>wrote:

>  Oops! I forgot to include this topic in my previous post:
>
> RP vs River:
> -----------------
>
> It seems to me that River clearly does better than RP toward the goal
> of not avoidably meaningfully disregarding a public pairwise decision
> (a pairwise defeat).
>
> If X>Y, and Z>Y, and the Z>Y defeat is stronger than the X>Y defeat,
> and is therefore considered sooner, and kept, in River,
>
> ...and therefore the X>Y defeat isn't kept, in River, because it
> duplicates an already-kept defeat, the Z>Y defeat,
>
> ...then the stronger, already-kept, Z>Y defeat does fully as much
> (more, actually) toward keeping Y from winning as would the weaker,
> unkept, X>Y defeat.
>
> Therefore, the X>Y voters aren't losing anything when X>Y isn't kept.
>
> ...But, if A>B cycles with X>Y, then the A>B defeat would be skipped
> in RP. But not in River, because X>Y isn't kept.
>
> Therefore, RP unnecessarily disregards a public pairwise decision
> (A>B) that River doesn' disregard.
>
> That suggests that River is better than RP
>
> I don't know what those 2 methods' various criteion-compliance
> differences are. On what important strategy criteria do they differ?
>
> What are the best arguments for RP over River.
>
> I've heard that RP can choose outside the Schwartz set. Aesthetically
> it's desirable to choose from the Schwartz set, but it's hardly
> necessary. If X is in the Smith set, but not the Schwartz set, then
> the voters have said that X is just as good as one of the Schwartz set
> members.
>
> It would be nice to choose from the Schwartz set, but the price is
> Beatpath's poorer consistency, and its premature, incompletely tested
> choice. RP and River build a consistent structure, of the strongest
> mutually consistent public pairwise decisions.
>
> What are the strongest argumnts for RP over River.
>
> The best one that I know is brevity and simpliity of definition.
>
> If i were proposing RF or River (for ideal majoritaian conditions),I
> might very well propose RP, due to its somewhat greater
> simplicity,even though River seems better.
>
> Michael Ossipoff
> ----
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>



-- 
 Frango ut patefaciam -- I break so that I may reveal
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