----- Original Message ----- From: Kristofer Munsterhjelm Date: Wednesday, July 13, 2011 2:12 pm Subject: Re: [EM] Centrist vs. non-Centrists (was A distance based method) To: [email protected] Cc: Jameson Quinn , [email protected]
> [email protected] wrote: > > > Of course if we have a multiwinner method, we don't want all > of the > > winners concentrated in the center of the population. That's > why we > > have Proportional Repsentation. > > > > Also the purpose of stochastic single winner methods > ("lotteries") is > > to spread the probability around to avoid the tyranny of the > > majority. > > I think you said that these are related, even: that PR methods > and > stochastic single-winner methods are similar, seeking > proportionality > (the former in seats, the latter in time). > Precisely. Andy Jennings was the one who hit on the key idea for constructing a lottery directly from a PR method; just do an N-winner PR method for large N, and treat the candidates like we treat parties in a party list method; keep the candidates in the running after they have already won a seat. Then the number of seats won by the candidate divided by the total number of seats is the candidate's probability in the lottery. ---- Election-Methods mailing list - see http://electorama.com/em for list info
