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From: Mark j. <mar...@gm...> - 2007-08-29 03:58:32
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Re the trees being buggy, I think the unit test would have picked up an error that big. Re trees, in general, I've been doing a lot of playing with them lately. My main conclusion is that it's not what tree you use for American puts, but what acceleration techniques you use: i.e. Richardson extrapolation, smoothing, truncation, that matters. (expect a paper soon!) Mark |