[EM] Monotonic Proportional Representation System?

[Markus Schulze]

Dear Clinton,

I don't know any method of proportional representation by
the single transferable vote that has been proven to meet
monotonicity. Some scientists claim that Dummett's QBS method
is monotonic:

http://www.deakin.edu.au/fac_buslaw/economics/publications/wp/wp2201.pdf

But I could find an example where this method violates
monotonicity:

http://www.electoral-reform.org.uk/publications/votingmatters/index.htm

Some scientists claim that Tideman's CPO-STV method is monotonic:

http://www.econ.vt.edu/tideman/rmt.pdf

But I am very sceptical.

Markus Schulze