Descending Acquiescing Coalitions: Difference between revisions
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imported>Kevin Lamoreau (mentioned DAC's satisfaction of the Later-no-help criterion) |
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'''Descending Acquiescing Coalitions''' or '''DAC''' is a [[voting system]] devised by Douglas Woodall for ranked ballots. It is equivalent to [[Descending Solid Coalitions]], except that sets are scored not by the number of voters solidly committed to them, but by the number of voters ''acquiescing'' to them. A voter "acquiesces" to a set of candidates if he does not strictly prefer any candidate outside of the set to any candidate within the set. |
'''Descending Acquiescing Coalitions''' or '''DAC''' is a [[voting system]] devised by Douglas Woodall for ranked ballots. It is equivalent to [[Descending Solid Coalitions]], except that sets are scored not by the number of voters solidly committed to them, but by the number of voters ''acquiescing'' to them. A voter "acquiesces" to a set of candidates if he does not strictly prefer any candidate outside of the set to any candidate within the set. |
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Unlike DSC, DAC does not satisfy the [[Later-no-harm criterion]]. |
Unlike DSC, DAC does not satisfy the [[Later-no-harm criterion]], but it does, unlike DSC, satisfy the [[Later-no-help criterion]]. |
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When no voter uses equal rankings or truncation, then DSC and DAC give the same results. |
When no voter uses equal rankings or truncation, then DSC and DAC give the same results. |