[EM] approval vs. IRV: majority loser criterion

[Adam Tarr]

James Green-Armytage wrote:

>         So, 80% of the voters strictly prefer every other candidate to 
> candidate
>L. And yet L wins using approval, because everyone only approves of their
>favorite. Yikes! It's crazy!

You've shown that approval is exactly as bad as plurality, when people 
choose to vote in exactly the same way as plurality.  This should come as 
no surprise to anyone.  If everyone bullet votes in IRV or Condorcet, it 
would have this same effect as well.

One would imagine that the voters in your example would be aware of the 
fractured nature of their faction, and willing to cast a vote for the 
universal second choice.  Your electorate is behaving in an amazingly 
irrational way.

-Adam