[EM] STV-CLE

[Dan Bishop]

I've made passing mention of my STV-CLE method (the CLE stands for 
Condorcet Loser Elimination) a couple of times, but the recent 
"Proportional Condorcet Voting" thread encouraged me to finally give it 
a decent introduction.

Essentially, STV-CLE is just like STV, except that instead of 
eliminating the candidate with the fewest first-choice votes, you 
eliminate the Condorcet (completion) loser.  I've included a vote 
calculator (using Beatpath ranking) in the attached file (requires 
Python 2.4 with GMPY).

An interesting result occurs when the voters are on a unform linear 
spectrum (i.e., voters = [random.uniform(0, 1) for i in 
xrange(num_voters)], and ballots are ranked by the distance between 
candidates and voters).  If there are candidates sufficiently close in 
position to multiples of the quota (except at the end of the spectrum), 
they will be elected.  That is, a 1-seat election will elect a candidate 
near 1/2; a 2-seat election will elect candidates near 1/3 and 2/3; a 
3-seat election will elect candidates near 1/4, 1/2, and 3/4; etc.
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