[EM] Expressing pairwise preferences

2005-08-13 Thread Juho Laatu
Hello Dave et al, On Aug 13, 2005, at 06:16, Dave Ketchum wrote: I __do__ get to express my n x (n-1) / 2 pairwise preferences (part or all, as I as a voter choose). I just am forced to be consistent. If I vote AB and BZ, then I have voted AZ. If there is a C for which I have given no

[EM] voter strat 2-party domination under Condorcet voting

2005-08-13 Thread Warren Smith
On the probability that insincerely ranking the two frontrunners max and min, is optimal voter-strategy in a Condorcet election. --Warren D. Smith Aug 2005-- MATHEMATICAL MODEL: 3-candidate V-voter Condorcet elections with random voters (all

[EM] voter strategy 2-party domination under IRV voting

2005-08-13 Thread Warren Smith
On the probability that insincerely ranking the two frontrunners max and min, is optimal voter-strategy in an IRV (Instant Runoff Votng) election. --Warren D. Smith Aug 2005-- MATHEMATICAL MODEL: 3-candidate V-voter IRV elections with random

RE: [EM] voter strat 2-party domination under Condorcet voting

2005-08-13 Thread Kevin Venzke
Warren, I believe it's safe to say that all deterministic rank methods which disallow equal ranking must fail the favorite betrayal criterion. You don't have to prove that for individual rank methods. You started your message like this: --- Warren Smith [EMAIL PROTECTED] a écrit : On the

[EM] The official and unofficial defns of Condorcet, range voting, red herrings

2005-08-13 Thread Warren Smith
OK, I can see I'm hitting a wall of opposition here. This whole issue is a red herring (i.e. distraction from my main point) so let us not be too distracted by it. The central issue which we had started from is the question of which is better - range voting or Condorcet methods? So instead of

Re: [EM] Expressing pairwise preferences

2005-08-13 Thread Dave Ketchum
Thanks to Juho for discussing some details. While there have to be voters who would be tempted by each, if available, they share a serious problem, and I will comment on each below. They complicate the rules: Voters must understand what is permitted, and what each facility means.

Re: [EM] voter strat 2-party domination under Condorcet voting

2005-08-13 Thread RLSuter
In a message dated 8/13/05, Warren Smith writes: Given that this is the case, we now can take it to be 100% certain that Condorcet voting methods will lead to 2-party domination, just like the flawed plurality system those methods were supposed to fix, and just like experiemntlly is true

RE: [EM] 0-info approval voting, repeated polling, and adjusting priors

2005-08-13 Thread Simmons, Forest
Title: Re: [EM] 0-info approval voting, repeated polling, and adjusting priors As usual, Jobst has given us lots of food for thought. First I would like to compare Joe Weinstein's approval strategy with its marginal version based on tie probabilities. The marginal version is to approve

Re: [EM] voter strat 2-party domination under Condorcet voting

2005-08-13 Thread Eric Gorr
[EMAIL PROTECTED] wrote: In a message dated 8/13/05, Warren Smith writes: Given that this is the case, we now can take it to be 100% certain that Condorcet voting methods will lead to 2-party domination, just like the flawed plurality system those methods were supposed to fix, and just like

Re: [EM] voter strat 2-party domination under Condorcet voting

2005-08-13 Thread Rob Lanphier
Hi Warren, I'm not following your theorem. Can you give an example of what you are referring to, showing a set of sincere preferences, followed by a set of tactical ballots which illustrate your point? E.g.: Sincere preferences: Group 1 - 18 votes: ABC Group 2 - 18 votes: ACB Group 3 - 16

Re: [EM] Expressing pairwise preferences

2005-08-13 Thread Juho Laatu
Hi Dave, I think I agree with you on that in normal elections (e.g. presidential elections) and for normal voters the described additional voting options are not needed and probably even harmful. The standard rules (of allowing voters to give one linear list of candidates, maybe allowing

Re: [EM] voter strategy 2-party domination under IRV voting

2005-08-13 Thread Dave Ketchum
NOT at all clear that 2-party domination is as evil as some claim. I claim for Condorcet that it is adequate - CERTAINLY: Better than Plurality, Approval, IRV, for it lets voters approve of more than one candidate, and indicate preference among those approved. Better than those for

RE: [EM] voter strat 2-party domination under Condorcet voting

2005-08-13 Thread James Gilmour
In a message dated 8/13/05, Warren Smith writes: Given that this is the case, we now can take it to be 100% certain that Condorcet voting methods will lead to 2-party domination, just like the flawed plurality system those methods were supposed to fix, and just like experimentally is true

[EM] simplcity of range v condorcet

2005-08-13 Thread Warren Smith
It was recently claimed on EM that condorcet had simpler rules than range. I dispute that. I challenge people to write computer programs to perform condorcet and range elections. I have so far never encountered anybody who produced a shorter program for condorcet. Not even close. For any

RE: [EM] simplcity of range v condorcet

2005-08-13 Thread Paul Kislanko
Shortest computer program is not a criterion that any voter would care about. Rules for voters and specification for counting programs are two different things. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] ] On Behalf Of Warren Smith Sent: Saturday,

Re: [EM] voter strategy 2-party domination under IRV voting

2005-08-13 Thread Rob Lanphier
On Sat, 2005-08-13 at 18:48 -0400, Dave Ketchum wrote: NOT at all clear that 2-party domination is as evil as some claim. This is a really good point to consider. We probably need to discuss the specific characteristics of the two-party system we rail about in order to judge if a system is bad

RE: [EM] simplcity of range v condorcet

2005-08-13 Thread Rob Lanphier
On Sat, 2005-08-13 at 19:13 -0500, Paul Kislanko wrote: Shortest computer program is not a criterion that any voter would care about. Rules for voters and specification for counting programs are two different things. In fairness, the specification for counting votes is something that

[EM] Re: simplcity of range v condorcet

2005-08-13 Thread Rob LeGrand
Rob Lanphier wrote: In fairness, the specification for counting votes is something that voters will probably care about, and it is one of the biggest liabilities of Condorcet. Part of the uphill battle for Condorcet advocates is to convince people that even if they don't understand exactly

Re: [EM] Expressing pairwise preferences

2005-08-13 Thread Dave Ketchum
On Sun, 14 Aug 2005 01:11:32 +0300 Juho Laatu wrote: Hi Dave, I think I agree with you on that in normal elections (e.g. presidential elections) and for normal voters the described additional voting options Generally best to ignore US presidential elections, unless your topic includes

[EM] Statement from the CAV/AAV Board

2005-08-13 Thread Rob LeGrand
A Summary of the Actions of the CAV Board Meeting of August 12, 2005 The Board of Citizens for Approval Voting (CAV) has decided against a major reorganization of CAV and Americans for Approval Voting (AAV). But it has broadened the mission statement to allow other groups to work with CAV/AAV

Re: [EM] simplcity of range v condorcet

2005-08-13 Thread Dave Ketchum
On Sat, 13 Aug 2005 17:35:19 -0700 Rob Lanphier wrote: On Sat, 2005-08-13 at 19:13 -0500, Paul Kislanko wrote: Shortest computer program is not a criterion that any voter would care about. Rules for voters and specification for counting programs are two different things. In fairness,

Re: [EM] simplcity of range v condorcet

2005-08-13 Thread bql
On Sat, 13 Aug 2005, Warren Smith wrote: I challenge people to write computer programs to perform condorcet and range elections. I have so far never encountered anybody who produced a shorter program for condorcet. Not even close. I find this an interesting point as I have implemented quite

Re: [EM] Re: simplcity of range v condorcet

2005-08-13 Thread Andrew Myers
The problem with range voting and other methods that attempt to capture voter utility is that voters have no incentive not to lie by amplifying their claimed utility to the maximum extent allowed, causing the method to become approval in most cases. If you want voters who understand the system to