Adam Tarr said: > I spent some time a few months back seeing if approval-completed > Condorcet could be made to work using this sort of ballot, but in the > end I realized that the only time approval completion worked like I > thought it should was when the approval votes supported the sincere > Condorcet winner. When the approval votes did not do so, the system > encouraged all sorts of strategic manipulations. So I gave up on ACC, > and I now hang my hat with > winning-votes based Condorcet, which seems to be the system that is > most resistant to strategic manipulation by a wide margin.
I went through a similar thought process. ACC seems so great, because it offers a fairly transparent criterion for resolving cyclic ambiguities. By contrast, dropping defeats based on either margins or wv requires more explanation and justification. However, you have 2 separate scores being kept, which not only leaves room for manipulation, it also raises legitimacy questions. When the process is determined entirely by the relative rankings there is no danger of "a Pope and anti-Pope." (Thomas Jefferson's critique of they way electoral college deadlocks are resolved.) Then again, in 2000 we kept a tally of both popular votes and electoral votes, and (sadly) not too many people got bent out of shape when they didn't match up. Anyway, count me in the wv camp now. Alex ---- For more information about this list (subscribe, unsubscribe, FAQ, etc), please see http://www.eskimo.com/~robla/em
