[Koha] Koha license upgrade voting method

[Clay Shentrup]

FairVote's argument against Score Voting (aka Range Voting) is mathematically
flawed. FairVote began as "Citizens for Proportional Representation", and I
believe their real interest in implementing Single Transferable Vote in the
USA, like e.g. Australia uses in their Senate. Because IRV ("preferential
vote") is the single-winner case of STV, FairVote pushes it as a useful
"stepping stone". I do not believe they particularly care about the merits of
IRV, and in fact they have made numerous blatantly false and misleading
statements on voting for many years.

Warren D. Smith, a Princeton math Ph.D. who has studied voting theory for
over a decade, and sort of served as the "protagonist" of the book
_Gaming the Vote_ responds specifically to several of the 

FairVote statements here:
http://ScoreVoting.net/Irvtalk.html

Here is a response to the specific (and actually quite absurd) criticism that
Score Voting and Approval Voting violate "majority rule", particularly as
compared to IRV.

http://www.electology.org/majority

The "right" metric of voting method performance (and you can basically prove it
mathematically, as counter-intuitive as that may seem) is "average voter
satisfaction" which can be expressed using ametric called Bayesian regret. Look
at this graph of Bayesian regret values and notice how vastly much better Score
and Approval Voting perform. IRV is actually almost bad as Plurality/FPtP.
http://scorevoting.net/BayRegsFig.html

Regards,
Clay Shentrup
The Center for Election Science
San Francisco, CA