Gibbard-Satterthwaite theorem: Difference between revisions
Content added Content deleted
imported>DanKeshet (rm wpisms) |
Psephomancy (talk | contribs) No edit summary |
||
Line 1: | Line 1: | ||
''This should just be a soft-redirect to Wikipedia?'' |
|||
The '''Gibbard-Satterthwaite theorem''' states that every unimposing [[voting system]] (one in which every preference order is achievable) which chooses between three or more candidates, must be either dictatorial or manipulable (i.e. susceptible to [[tactical voting]]). It follows from [[Arrow's impossibility theorem]]. |
The '''Gibbard-Satterthwaite theorem''' states that every unimposing [[voting system]] (one in which every preference order is achievable) which chooses between three or more candidates, must be either dictatorial or manipulable (i.e. susceptible to [[tactical voting]]). It follows from [[Arrow's impossibility theorem]]. |
||
⚫ | |||
{{stub}} |
{{stub}} |
||
⚫ | |||
{{fromwikipedia}} |
{{fromwikipedia}} |