[EM] DMC / 2-party domination

[Jobst Heitzig]

Dear Kevin!

You wrote, answering Warren:
>>here is another:  consider the horrible "DH3 pathology" described at
>>http://math.temple.edu/~wds/crv/DH3.html
>>
>>which afflicts Borda and many Condorcet methods...   does it also afflict
>>DMC?  Again answering this requires some understanding of voting strategy in DMC.
>>However, if the voters use the "obvious" exaggeration-plan
>>(for A-supporters:  A>D>B>C  and approve A only)  then it seems
>>to me under DMC D wins, right?  This suggests DMC is killed by the DH3 pathology.
>>And by "killed" I mean bad news, you really should regard this extremely seriously.
> 
> 
> When you rank frontrunners insincerely low, you're "burying" them. So Jobst
> mentioned this as point 17:

That was actually Forest. However, I tried to understand why in the DH3
example the A voters should get the idea that voting A>D>B>C is of any
use for them. Most methods I know will not be affected at all by such a
move since then still D is the Condorcet Loser. Did you understand this?

Yours, Jobst