What the pairwise matrix doesn't tell you is anything about the order ofyou wrote (15 May 2001):It may be sufficient for some, but I would think at least a few voters
would demand more complete information about an election that will
determine many aspects of their lives for the next several years.
Exactly where do the numbers come from in each step? If there were
100000 A votes in the first round, and A got eliminated, how many were
ABC votes and how many were ACB votes? This can be determined by the
difference between first and second round votes for B and C. But how
many of the B votes were BAC votes and how many of the C votes were
CAB votes?
However, also the pairwise matrix doesn't say how many BAC votes there are.
You seem to believe that the voters want to know how many BAC votes there
are only when IRV is used but not when a pairwise method is used.
Markus Schulze
elimination. You could provide both the elimination results at each stage,
plus the pairwise matrix, and this would tell you a lot. But it doesn't tell
you enough to play out alternate scenarios, such as "If X had received an
extra 0.1% of the vote, and had not been eliminated in the first round, how
would the outcome have changed?"
As a practical example, any candidate thinking of asking for a recount
to challenge his elimination in a close IRV race might wish to first
determine whether doing so could produce a worse outcome.
Richard
