evt

  1. M

    Dowd - Extreme Value Theory Questions

    Hi, I am studying EVT and noticed that the GEV distrib. for xi = 0 is given by: exp[ -exp (x-u/sigma) ] as given in Dowd. So when I translated that as: 1 / (e ^ ( e ^ z) ), I noticed that my solution for ln (p) is coming to : - ( e ^ z) - which is incorrect. As Dowd says that it should be - e...
  2. H

    Extreme Value Theory

    Hi David - I have a couple of questions on EVT. - In the Quant notes, page 110, under GEV - there is a sentence underneath the formula -"In this expression, a lower tail index corresponds to a fatter tail". I understand that the tail index, epsilon, is a measure of the "fat-tailness" of the...
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