July 20th, 2004, 9:07 pm
certainly a good book, interesting read. but let me add that it deals with a regime which to me seems to be quite irrelevant (fast mean reversion). even if they do try to justify it by looking for fast (and we talk 2,3 days!) meanreversion in some historical data, that kind of speed would be totally unusable to even remotely approximate current implied vosurfaces: the skew would disappear way too quickly.