[EM] PR-STV Strategic Vulnerability

2006-12-15 Thread raphfrk
One strategic vulnerability of PR-STV is vote management. This is where a party tries to ensure that most of their first choice votes are split equally between all their candidates in the hope that the quota will drop. For example, assume a 4 seater 37A1A2 27 B 18 C1C2 18 C2C1

Re: [EM] simulator code for 2 Approval methods

2006-12-15 Thread raphfrk
Thanks. I have created 2 methods. The first one is approval zero info. In this case, the voter averages his utility for all the candidates and places his approval threshold at the average. The second one is the same as above. However, it runs 2 elections. The first election uses the same

[EM] Scott Ritchie's FAVS criterion - uniquely favors range voting

2006-12-15 Thread Warren Smith
About Scott Ritchie's feel alike vote same FAVS criterion that all members of a feel-alike group should want to vote the same. FAVS is falsified by IRV if incomplete information: either A or B need 5 more votes to surpass the hated C and/or the 50% mark (but you do not know which) and your

[EM] simulator code for VFA

2006-12-15 Thread Kevin Venzke
Hi, I believe this code is good for VFA. I am assuming there is a getMin similar to getMax. I might also like to implement two-slot MMPO (average rating as the approval cutoff). It would be interesting to try implementing a strategic Borda. Perhaps start with a zero-info approval round, and

Re: [EM] simulator code for 2 Approval methods

2006-12-15 Thread Brian Olson
A BIG thank you to Raphfrk and Kevin Venzke! I've integrated the code they posted and I'm running the simulations currently, results to be posted in 1-3 days of compute time... Here's a first one to whet your appetite, ApprovalNoInfo with three candidates showing a perhaps odd consequence

[EM] RE : Re: simulator code for 2 Approval methods

2006-12-15 Thread Kevin Venzke
Brian, --- Brian Olson [EMAIL PROTECTED] a écrit : Here's a first one to whet your appetite, ApprovalNoInfo with three candidates showing a perhaps odd consequence of how the threshold gets set. Thanks. Looking at that result, compared with other methods' results on your site, and noting