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<div>Has this every been proposed as a way to mix approval and PR-STV ?<br>
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It is like IRV with equal weights, so I am assuming that it has been proposed. It is also similar to sequential proportional approval voting, just that the ballot re-weighting calculation is different.<br>
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It is equivalent to PR-STV if no voter votes equal ranks.<br>
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Ballots are ranked ballots with equal ranks allowed.<br>
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Process:<br>
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1) Set each ballot to weight 1.0<br>
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2) Quota = (Totals Ballots)/(1+Seats)<br>
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3) A ballot counts as voting for a candidate if the candidate is in the highest rank that has at least 1 candidate that is still unelected and uneliminated<br>
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4) Total the weights of all the ballots voting for each candidate<br>
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5) If the total for the candidate with the highest total exceeds the quota:<br>
Deem that candidate elected<br>
Multiply the weight of all the ballots that vote for the candidate by<br>
(Candidate's total - Quota)/(Quota)]<br>
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Otherwise,<br>
Eliminate the candidate with the fewest votes<br>
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6) Goto 3) until the number of uneliminated candidates is less than or equal to the number of seats<br>
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7) Deem any remaining candidate who has not been eliminated as elected.<br>
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Current PR-STV effectively implements IRV for the intra "faction" election.<br>
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If there is 5 seats and a faction represents 20% of the electorate, the members of the faction can gaurentee that a candidate from the faction takes the seat. However, that is not necessarily the best candidate from the faction.<br>
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Assuming that 3 candidates from the faction run:<br>
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L>C>R>>(rest of the candidates): 8% <br>
C>L>R>>(rest of the candidates): 2%<br>
C>R>L>>(rest of the candidates): 2%<br>
R>C>L>>(rest of the candidates): 8%<br>
(rest of the candidates)>>(L,R,C): 80%<br>
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Ignoring the effects of transfers into the faction, C will be eliminated before R and L and then they will tie.<br>
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However, C is the condorcet winner for the faction.<br>
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Under the equal ranks proposal. It is likely that C will get some approvals from L and R supporters. If half of each approve both C and their favourite, then C will get 10% first choices. This will mean that either L or R will be eliminated first and all the votes will transfer to C.<br>
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<div style="clear: both;">Raphfrk<br>
--------------------<br>
Interesting site<br>
"what if anyone could modify the laws"<br>
<br>
www.wikocracy.com</div>
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