[EM] equal rankings IRV

[Kevin Venzke]

James,

 --- James Green-Armytage <jarmyta at antioch-college.edu> a écrit : > 
> 	I was encouraged to read Mike Ossipoff's statement that equal
> rankings-allowed IRV, specifically the whole votes version, would be a
> substantial step up from IRV, and would even be superior to approval
> voting.

I prefer Approval to ERIRV for the same reason I prefer it to ERBucklin:
These last two make it too easy for voters to make their vote useless just
by trying to take advantage of the ranked ballot's support for being fully
expressive.

> I guess you could say I'm trying to take a poll or something.

I had a thought: Perhaps we could get more participants in a poll if the
subject was not political.  I'm not interested in voting for candidates for
president, but I would submit a ballot if the subject were preferred flavors,
or celebrities.

> 	So, I'd like to know if everyone agrees that the whole votes version of
> ER-IRV is better than the standard version of IRV where equal rankings are
> not allowed. If so, how much better is it? Does it have any new
> disadvantages that standard IRV doesn't have?

It's much better in that I think there would not be so much nomination disincentive,
or order-reversal incentive.

It's going to be worse, from the perspective of people who think it's important
to find majority-strength coalitions, because of all the compression incentive.
It won't be possible to ensure that there is only one "majority winner."

> 	Also, I'd like to know if everyone agrees that the whole votes ER-IRV is
> preferable to the fractional votes version.

Yes.  But not for multiple winners of course.

> 	And last, logically enough, is the fractional version substantially
> better than the standard no-equal-rankings-allowed version?

No, I really don't see that.  I think there is still too much pressure to dump
semi-viable candidates.

Kevin Venzke
stepjak at yahoo.fr



	

	
		
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