Reply to: [EM] Multiple Winner Elections

LAYTON Craig Craig.LAYTON at add.nsw.gov.au
Thu Mar 1 20:28:39 PST 2001


Don wrote:

>   Your two person co-chair election should be conducted as follows:
>     1) Divide the total votes by the number of seats.  This is known as
>the Hare Quota. You should get two halves. One half will end up on one
>candidate and the other half will end up on another candidate.
>     Do not use the Droop Quota, which is one of the Dirty Little Secrets
>of STV. The Droop Quota will divide the votes into three near equal parts.
>One part elects one candidate, another part elects the second candidate,
>and the third part elects no one. The voters in the third part have been
>disenfranchised. The supporters of the Droop Quota have no sense of what is
>right or wrong - and they don't care. Don't use the Droop Quota.

I'm sorry - Hare Quota?

eg;
200 voters, 3 candidates to be elected (x stands for "the rest of the
field");

69 A>B>C
69 D>B>C
29 B>x>C
33 C>x

The Hare quota is 68 (Droop Quota 51).  A and D get the quota, their votes
are redistributed at fractional transfer values - B now has 31 and C has 33.
C is elected. (a droop quota would elect A,B,D)

The C voters have secured one third of the seats in the legislature, even
though 83.5% of the voters ranked C dead last.  If it was a highest average
count, and A,B,D had joined together as a single party, then ABD would get
elected in a d'hondt count, as well as saint lague (specifically designed to
help smaller parties) and modified saint lague.  Hare is the absolute worst
way to distribute seats (and there are much worse examples with more
candidates).  You seem to be determined to sabotage the only decent
electoral system you advocate.



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