[EM] Methods, and the criteria they satisfy

[Bart Ingles]

I think when mentioning criteria, it's a good idea to also state why
those criteria might be important.  For example, to me criteria such as
FBC and Participation are important because they relate to a voting
system's immunity to the Duverger effect.

Approval meets both of these criteria, while the Condorcet methods
appear to meet them whenever a CW is present.  Borda and IRV fail these
criteria under a wider variety of conditions, therefore both would tend
to reinforce the two-party system, and to restrict the number of viable
choices available to voters in non-partisan elections.

Bart


Dgamble997
> [...]
> As Arrow's theorem demonstrates no electoral system can meet a
> perfectly reasonable sounding ( and short) list of criteria. Which
> criteria you consider relevant and feel a method should meet involves
> some very subjective decisions about what features of an electoral
> system you consider important.
> 
> David Gamble