[ExI] Fwd: elections again; was [Time Magazine: Person of the Year: Putin(!),my vote instead: Anna Politkovskaja]
daniel radetsky
dradetsky.lp at gmail.com
Fri Dec 28 18:00:35 UTC 2007
Spike: you forgot
n. Verify that verifications in steps n-k (where 0 < k < n-1) are performed
correctly.
n+1. Verify that step n was performed correctly.
...
On Dec 27, 2007 4:48 PM, J. Andrew Rogers < andrew at ceruleansystems.com>
wrote:
> As a meta-comment, "fair elections" as most people would describe them
> are generally a hard problem, even if every vote is always counted
> correctly. See: Gibbard-Satterthwaite Theorem, Duggan-Schwartz
> Theorem, and Arrow's Theorem (among others).
These only apply to ranked choice voting schemes. See Range Voting.
> Manipulability is a basic
> property of the system no matter how you try to re-arrange the deck
> chairs given the current non-negotiable assumptions of democratic
> voting commonly in use.
>
If you assume that certain properties are non-negotiable, and those
properties imply manipulability, then manipulability is guaranteed. But why
should we assume that properties implying manipulability are non-negotiable?
If a property leads to manipulability, that's a sure sign that it ought to
be negotiated.
Daniel
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