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Something worth reading

PostPosted: Mon Feb 23, 2009 6:41 pm
by Technomancer
http://www.wired.com/techbiz/it/magazine/17-03/wp_quant?currentPage=all

The contents of the article shouldn't be news to anyone who is familiar with the sort of assumptions made in financial models. More importantly, it shouldn't be news that a lot second-rate hacks simply blindly applied this approach without bothering to understand the flaws. The article is however, a good case study of bad statistical modelling and its consequences.

PostPosted: Tue Feb 24, 2009 8:36 am
by ich1990
Interesting. I did not know about that statistical formula.

PostPosted: Tue Feb 24, 2009 1:35 pm
by uc pseudonym
I appreciate this. General articles have been mentioning this model off hand for a while, but naturally none of them ever give the actual formula, much less a cogent analysis of its problems.

PostPosted: Wed Feb 25, 2009 5:33 am
by Technomancer
Having been forced to fiddle with the copula by my thesis supervisor, I'm familiar with how sensitive it can be to mismatched models. My basic opinion was that it was a waste of time to apply it to the problem we had.