Abd wrote: What is the problem with the definition of clone? There seem to be two definitions, if I look at Wikipedia. One is that the two candidates are identical. This would require equal rating in Range, for example, and Range would clearly pass ICC. The other is that the candidates are only ranked identically,
I comment: The definition that I heard was that the clones are consecutively-rankeed (not necessarily in the same order) by everyone. In other words, it's a set of candidates between whom no one ranks anyone else. It's been a long time since I discussed this, but definilng ICC is a problem if it's based on preferences. Then we have to decide how people's voting is constrained. Do they try to maximize ltheir utility expectation, for instance? I've heard peference-based definitions that were vague because they specified no such constraints. Preference-based definitions of IIAC have that problem too. But I don't object to preference-based criteria, if they're well defined. For instance, my defensive strategy criteria are preference-based. But the only satisfactory ICC definition that I know of isn't preference based. It's votes-only. It's the only one that I've heard agreement on. Because of the modem-shutoff problem, I'd better quit here. Mike Ossipoff ---- election-methods mailing list - see http://electorama.com/em for list info
