[EM] What is the name of this simplest STV multi-winner method?

[Kristofer Munsterhjelm]

On 11/25/22 23:47, Andy Dienes wrote:
> Bottoms-up IRV. It is not very proportional though.

I've also heard it referred to as "at-large IRV" (LWV Boulder, 
https://downloads.regulations.gov/EAC-2020-0002-0003/attachment_1.pdf 
page 4) or "bloc IRV" (Jameson Quinn, 
https://twitter.com/bettercount_us/status/1412445147015622664)

I wouldn't call it STV either, and it can be near-arbitrarily 
disproportional, e.g.

1048576: A>B>C>D>E
       1: F

Two to be elected, the Droop proportionality criterion says that A and B 
must be elected, but B, C, D, and E are eliminated by plain IRV because 
they have no first preferences, leading A and F to be elected.

-km