Yes/No Voting

[Gervase Lam]

Each voter may give a candidate "Yes", "No", or nothing. A candidate's
No votes are subtracted from his Yes votes, and the result is his
score. The candidate with highest score wins.

That's equivalent to CR, with -1, 0, 1. Which is equivalent to
0, 1, 2 CR. Which of course is strategically equivalent to Approval.

Mike Ossipoff

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If there were just three candidates, would this be equivalent to Borda?  
Doesn't this make it more susceptible to order reversal than Approval?

Also, how is this strategically equivalent to Approval?  Could you give 
some examples?

Personally I prefer the levels to be scored 1 (Full vote/point), 0.5 (Half 
vote/point) and 0 (No vote/points).  This would probably be easier for the 
voter.

Thanks,
Gervase.

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