[EM] IRV in San Francisco

Eric Gorr eric at ericgorr.net
Tue Nov 16 13:24:18 PST 2004

At 3:14 PM -0600 11/16/04, Paul Kislanko wrote:
>No one can be added or removed
>from a ballot after the votes have been counted,

Sure one can...just do it and recalculate.

>so by this distinction
>there is no such thing as an IIA spoiler.

I believe there is.

Compute the winner.

Start removing candidates and see if you can get the winner to change.

If the winner changes, you have a spoiler via IIA.

>ICC is just a weaker version of IIA, and has to be weaker because nothing
>can pass IIA and meet three other desirable criteria.

What ICC and IIA are you using?

On what basis do you call the ICC a weaker version of IIA?

Does your statement imply that if a method passes Dr. Arrow's IIA, it 
must pass Dr. Tidemans ICC?

More information about the Election-Methods mailing list