Talk:Kurtosis risk

Since kurtosis risk denotes an economical problem i dont believe it should be included in the kurtosis page, (but indeed has a link from there)

I think the same. Janlo 14:27, 27 April 2007 (UTC)

You say that "kurtosis risk denotes an economical problem" but does it? The intro says "observations are spread in a wider fashion than the normal distribution entails" and "Kurtosis risk is commonly referred to as "fat tail" risk", which is quite a general statement about distributions. As a non-economic example, apparently (ie. I can't be bothered to hunt down a link) the distribution for Intelligence Quotients has higher rates at the upper and lower ends than the normal curve would predict. That is, IQ is somewhat "fat tailed". 2.98.251.200 (talk) 01:00, 8 April 2012 (UTC)

People generally don't make decisions based on assuming IQ is normally distributed, though. Kurtosis risk is the excess risk of failure of an investment due to fatter tails than the normal distribution (e.g. for an investment with μ = 6σ, failure is basically unthinkable if the distribution's normal, but could be significant for a fat-tailed distribution). Kurtosis is the fat tails, kurtosis risk is the consequences of the fat tails for decision-making. Magic9mushroom (talk) 04:29, 18 November 2013 (UTC)

Other literature posts that the fall of LTCM was due not to kurtosis risk in the model, but to timing. The spreads that would have saved the company materialized not long after it went down. See "When Genius Failed: The Rise and Fall of Long-Term Capital Management" R. Lowenstein. --186.26.113.114 (talk) 20:39, 28 October 2016 (UTC)