Sebastian Pokutta's Blog

Mathematics and related topics

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Gaussian copulas and mathematical models in financial markets

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A few articles/blog posts that might be in particular interesting:

  1. In reference to the Wired article  Recipe for Disaster: The Formula That Killed Wall Street:
    Finance’s Gaussian Copulas: The New Frankenstein Monster (Aurelie Thiele)
    Finance’s Gaussian Copulas, Part 2
    (Aurelie Thiele)
  2. In Plato’s cave — Mathematical models are a powerful way of predicting financial markets. But they are fallible (The economist)

Written by Sebastian

March 15, 2009 at 9:10 am

Credit card fees

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Did you ever wonder how much merchants are charged when you use your credit card? The website True Cost of Credit provides you with these numbers for major credit card providers – the numbers are for the US though. Given that the fees are not insignificant (somewhere between 2-4% in most cases and can go as high as 18% for e.g. gums) one could easily imagine that these fees eat up a lot of the profit margin or in turn are at least partially passed on to the customer.

Written by Sebastian

January 29, 2009 at 8:35 am

Posted in Uncategorized