Re: [EM] Spoiler Effect on Wikipedia

2004-11-13 Thread Eric Gorr
On Fri, 12 Nov 2004 23:25:55 -0500, Eric Gorr <[EMAIL PROTECTED]> wrote: Well, use the one that Dr. Tideman proposes. I would assume that it would fall into the resolute model. Isn't the "resolute model" just, well, wrong? The topic under discussion is not the relative merits of the variants of

Re: [EM] Spoiler Effect on Wikipedia

2004-11-13 Thread Paul Crowley
On Fri, 12 Nov 2004 23:25:55 -0500, Eric Gorr <[EMAIL PROTECTED]> wrote: > Well, use the one that Dr. Tideman proposes. > I would assume that it would fall into the resolute model. Isn't the "resolute model" just, well, wrong? No entirely deterministic method can satisfy universality, anonymity,

Re: [EM] Spoiler Effect on Wikipedia

2004-11-12 Thread Eric Gorr
Dear Eric, you wrote (12 Nov 2004): I would suggest the one proposed by Dr. Tideman which I believe can be found here: http://condorcet.org/emr/criteria.shtml I don't see that Blake Cretney uses the resolute model. Well, use the one that Dr. Tideman proposes. I would assume that it would fall in

Re: [EM] Spoiler Effect on Wikipedia

2004-11-12 Thread Markus Schulze
Dear Eric, you wrote (12 Nov 2004): > I would suggest the one proposed by Dr. Tideman which I believe can > be found here: > > http://condorcet.org/emr/criteria.shtml I don't see that Blake Cretney uses the resolute model. The resolute model says that for every possible set of ballots a candidat

Re: [EM] Spoiler Effect on Wikipedia

2004-11-12 Thread Eric Gorr
At 12:25 AM +0100 11/13/04, Markus Schulze wrote: Dear Eric Gorr, you wrote (13 Nov 2004): I am not talking about the IIA variant that you prefer, but Dr. Arrow's variant (which does not involve probabilities - unless I am mistaken), so my question to you stands. So when you want to use the reso

Re: [EM] Spoiler Effect on Wikipedia

2004-11-12 Thread Markus Schulze
Dear Eric Gorr, you wrote (13 Nov 2004): > I am not talking about the IIA variant that you prefer, but Dr. > Arrow's variant (which does not involve probabilities - unless > I am mistaken), so my question to you stands. So when you want to use the resolute model for IIA, then of course you also h

Re: [EM] Spoiler Effect on Wikipedia

2004-11-12 Thread Eric Gorr
Hallo, So would passing the strong version of IIA (and by strong version, I assume we are speaking about the one Dr. Arrow used) imply passing ICC? As I said: Random Candidate, David Catchpole's Random Candidate, and Random Pairs satisfy IIA and violate ICC. I am not talking about the IIA varian

Re: [EM] Spoiler Effect on Wikipedia

2004-11-12 Thread Markus Schulze
Hallo, > So would passing the strong version of IIA (and by strong version, I > assume we are speaking about the one Dr. Arrow used) imply passing > ICC? As I said: Random Candidate, David Catchpole's Random Candidate, and Random Pairs satisfy IIA and violate ICC. Markus Schulze Election-

Re: [EM] Spoiler Effect on Wikipedia

2004-11-12 Thread Eric Gorr
Hallo, I'm responsible for the edits to that page that make that claim, but if it's wrong please do fix it. Markus S - I'm very surprised that IIA does not imply ICC, could you give an example? I mean the strong version of IIA. I prefer the following definition for IIA So would passing the st

Re: [EM] Spoiler Effect on Wikipedia

2004-11-11 Thread Daniel Bishop
Eric Gorr wrote: At 6:04 PM + 11/11/04, Paul Crowley wrote: On Thu, 11 Nov 2004 12:08:31 -0500, Eric Gorr <[EMAIL PROTECTED]> wrote: hummmthere appears to be two opposing points of view here. Chris B. claims that IIA satisfaction does imply ICC satisfaction. Markus S. claims that it does no

Re: [EM] Spoiler Effect on Wikipedia

2004-11-11 Thread Markus Schulze
Hallo, > I'm responsible for the edits to that page that make that claim, but > if it's wrong please do fix it. Markus S - I'm very surprised that > IIA does not imply ICC, could you give an example? I mean the strong > version of IIA. I prefer the following definition for IIA: Suppose, P[X] is

Re: [EM] Spoiler Effect on Wikipedia

2004-11-11 Thread Paul Crowley
On Thu, 11 Nov 2004 12:08:31 -0500, Eric Gorr <[EMAIL PROTECTED]> wrote: > hummmthere appears to be two opposing points of view here. > > Chris B. claims that IIA satisfaction does imply ICC satisfaction. > Markus S. claims that it does not. I'm responsible for the edits to that page that mak

Re: [EM] Spoiler Effect on Wikipedia

2004-11-11 Thread Steve Eppley
Hi, Eric G wrote: -snip- > Unless I am mistaken, Approval Voting does satisfy IIA and > I find AV to be a reasonable system. :-) > > This nuance is missing on the page > (http://en.wikipedia.org/wiki/Spoiler_effect) as well > when it is stated: > > A voting system which satisfies the indepen

Re: [EM] Spoiler Effect on Wikipedia

2004-11-11 Thread Eric Gorr
At 6:04 PM + 11/11/04, Paul Crowley wrote: On Thu, 11 Nov 2004 12:08:31 -0500, Eric Gorr <[EMAIL PROTECTED]> wrote: hummmthere appears to be two opposing points of view here. Chris B. claims that IIA satisfaction does imply ICC satisfaction. Markus S. claims that it does not. I'm respons

[EM] Spoiler Effect on Wikipedia

2004-11-11 Thread Eric Gorr
(http://www.wikipedia.org/wiki/Spoiler_effect) At 5:46 PM +0100 11/11/04, Markus Schulze wrote: Neither does Arrow's concept of "irrelevant alternatives" imply Tideman's concept of "clones" nor does Tideman's concept of "clones" imply Arrow's concept of "irrelevant alternatives". They are simply tw

[EM] Spoiler Effect on Wikipedia

2004-11-11 Thread Eric Gorr
(http://www.wikipedia.org/wiki/Spoiler_effect) At 5:46 PM +0100 11/11/04, Markus Schulze wrote: Hallo, On the current wikipedia page for the Spoiler Effect, it says: A voting system which satisfies the independence of irrelevant alternatives criterion is immune to the spoiler effect,