Re: [EM] Why I Prefer IRV to Condorcet

2008-12-14 Thread Kristofer Munsterhjelm
Juho Laatu wrote: --- On Fri, 5/12/08, Kristofer Munsterhjelm km-el...@broadpark.no wrote: Alright. You may like Minmax for being Minmax, and that's okay; but in my case, I'm not sure if it would withstand strategy (there's that hard to estimate the amount of strategy that will happen again),

Re: [EM] Why I Prefer IRV to Condorcet

2008-12-14 Thread Juho Laatu
--- On Sun, 14/12/08, Kristofer Munsterhjelm km-el...@broadpark.no wrote: Juho Laatu wrote: --- On Fri, 5/12/08, Kristofer Munsterhjelm km-el...@broadpark.no wrote: Alright. You may like Minmax for being Minmax, and that's okay; but in my case, I'm not sure if it would withstand

[EM] Why I Prefer IRV to Condorcet

2008-12-10 Thread Chris Benham
Kristofer, You wrote (Sun.Nov.23): Regarding number two, simple Condorcet methods exist. Borda-elimination (Nanson or Raynaud) is Condorcet. Minmax is quite simple, and everybody who's dealt with sports knows Copeland (with Minmax tiebreaks). I'll partially grant this, though, since the good

Re: [EM] Why I Prefer IRV to Condorcet

2008-12-06 Thread Juho Laatu
--- On Fri, 5/12/08, Kristofer Munsterhjelm [EMAIL PROTECTED] wrote: Alright. You may like Minmax for being Minmax, and that's okay; but in my case, I'm not sure if it would withstand strategy (there's that hard to estimate the amount of strategy that will happen again), and the Minmax

Re: [EM] Why I Prefer IRV to Condorcet

2008-12-05 Thread Kristofer Munsterhjelm
Juho Laatu wrote: --- On Mon, 1/12/08, Kristofer Munsterhjelm [EMAIL PROTECTED] wrote: Then you should advocate Minmax for being Minmax, not for being Condorcet compliant. If you do the latter, then people may argue that the system is inconsistent because it doesn't follow up the implication

Re: [EM] Why I Prefer IRV to Condorcet

2008-12-02 Thread Juho Laatu
--- On Mon, 1/12/08, Kristofer Munsterhjelm [EMAIL PROTECTED] wrote: There are different kind of criteria. If one decides the winner based on one single vote a method that would elect the least preferred candidate would be bad. Things get however more complex with group opinions that

Re: [EM] Why I Prefer IRV to Condorcet

2008-12-01 Thread Kristofer Munsterhjelm
Juho Laatu wrote: --- On Thu, 27/11/08, Kristofer Munsterhjelm [EMAIL PROTECTED] wrote: Minmax may elect the Condorcet loser only when there is no Condorcet winner. And only in situations where all other candidates are worse than the Condorcet loser from the minmax philosophy/utility point of

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-27 Thread Kristofer Munsterhjelm
Juho Laatu wrote: --- On Tue, 25/11/08, Kristofer Munsterhjelm [EMAIL PROTECTED] wrote: I'll try to answer very shortly to most of the points. I can comment more if there are some interesting ones. From: Kristofer Munsterhjelm [EMAIL PROTECTED] Subject: Re: [EM] Why I Prefer IRV to Condorcet

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-27 Thread Juho Laatu
--- On Thu, 27/11/08, Kristofer Munsterhjelm [EMAIL PROTECTED] wrote: Note that the minmax philosophy is to study paths of length one. Minmax philosophy says that voter interest to replace the elected candidate with another is more relevant than their interest to replace the candidates

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-27 Thread Markus Schulze
Hallo, Juho Laatu wrote (28 Nov 2008): I didn't quite get this. When evaluating candidate X minmax just checks if voters would be interested in changing X to some other candidate (in one step), while methods like Schulze and Ranked Pairs may base their evaluation on chains of victories

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-27 Thread Juho Laatu
. Juho --- On Fri, 28/11/08, Markus Schulze [EMAIL PROTECTED] wrote: From: Markus Schulze [EMAIL PROTECTED] Subject: Re: [EM] Why I Prefer IRV to Condorcet To: [EMAIL PROTECTED] Date: Friday, 28 November, 2008, 2:41 AM Hallo, Juho Laatu wrote (28 Nov 2008): I didn't quite get this. When

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-25 Thread Kristofer Munsterhjelm
Chris Benham wrote: Kristopher, All Condorcet methods are vulnerable to Burial. Smith,IRV has in common with IRV but not the other well-known Condorcet methods that a Mutual Dominant Third winner can't be buried. But like all other Condorcet methods it is not absolutely invulnerable to Burial

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-25 Thread Juho Laatu
--- On Tue, 25/11/08, Kristofer Munsterhjelm [EMAIL PROTECTED] wrote: I'll try to answer very shortly to most of the points. I can comment more if there are some interesting ones. From: Kristofer Munsterhjelm [EMAIL PROTECTED] Subject: Re: [EM] Why I Prefer IRV to Condorcet To: [EMAIL

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-25 Thread Juho Laatu
--- On Tue, 25/11/08, Chris Benham [EMAIL PROTECTED] wrote: I agree that resistance to Burying is atractive and IRV's big selling point versus Condorcet methods. Yes, this may be the strongest selling argument of IRV against Condorcet. But I think this doesn't yet mean that Condorcet

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-23 Thread Kristofer Munsterhjelm
Greg wrote: I have written up my reasons for preferring IRV over Condorcet methods in an essay, the current draft of which is available here: http://www.gregdennis.com/voting/irv_vs_condorcet.html I welcome any comments you have. I'll try to do so, then. Note that I support Condorcet.

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-23 Thread Juho Laatu
--- On Sun, 23/11/08, Kristofer Munsterhjelm [EMAIL PROTECTED] wrote: Regarding number two, simple Condorcet methods exist. Borda-elimination (Nanson or Raynaud) is Condorcet. Minmax is quite simple, and everybody who's dealt with sports knows Copeland (with Minmax tiebreaks). I'll partially

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-22 Thread Greg
or whether to compromise. Juho --- On Sat, 22/11/08, Greg [EMAIL PROTECTED] wrote: From: Greg [EMAIL PROTECTED] Subject: Re: [EM] Why I Prefer IRV to Condorcet To: election-methods@lists.electorama.com Date: Saturday, 22 November, 2008, 3:06 AM Thanks, Chris. I'll correct the errors

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-22 Thread Greg
. Then nominating also C (the more extreme of the two potential candidates) was maybe a mistake. Juho --- On Sat, 22/11/08, Greg [EMAIL PROTECTED] wrote: From: Greg [EMAIL PROTECTED] Subject: Re: [EM] Why I Prefer IRV to Condorcet To: [EMAIL PROTECTED] Cc: election-methods

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-22 Thread Juho Laatu
PROTECTED] Subject: Re: [EM] Why I Prefer IRV to Condorcet To: [EMAIL PROTECTED] Cc: election-methods@lists.electorama.com Date: Saturday, 22 November, 2008, 10:04 AM Yes, this is as intuitive as it comes in terms of IRV strategy, but I still find it ultimately counter-intuitive

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-21 Thread fsimmons
For some light on the question as to whether or not IRV's failures of the Condorcet Criterion are apt to be rare: http://zesty.ca/voting/sim/ FWS Election-Methods mailing list - see http://electorama.com/em for list info

Re: [EM] Why I Prefer IRV to Condorcet

2008-11-21 Thread Greg
result overall . . . but that's a tricky topic for another time. Date: Thu, 20 Nov 2008 11:51:01 -0800 (PST) From: Chris Benham [EMAIL PROTECTED] Subject: [EM] Why I Prefer IRV to Condorcet Greg, I generally liked your essay. I rate IRV as the best of the single-winner methods that meet

[EM] Why I Prefer IRV to Condorcet

2008-11-20 Thread Chris Benham
Greg, I generally liked your essay. I rate IRV as the best of the single-winner methods that meet Later-no-Harm, and a good method (and a vast improvement on FPP). But I think you made a couple of technical errors. However, because bullet voting can help and never backfire against one's top