Turbulence and financial markets
Article Abstract:
Previous research has studied the analogies between the price dynamics in the foreign exchange market and three-dimensional fully developed turbulence. However, a similar study comparing the dynamical properties of the Standard and Poors (S&P) 500 Index and the time evolution of a three-dimensional fully turbulent fluid yields different conclusions. Contrary to the first study, the second study found that no correlation between the price changes of the S&P 500 and that the velocity changes in the 3-D turbulence were anticorrelated. In addition, the maximum of the probability distribution of price changes at a time indicates clear Levy scaling but the corresponding turbulence quantity does not indicate scaling.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Similarities between the growth dynamics university research and of competitive economic activities
Article Abstract:
The scaling properties of fluctuations in the output of physical systems often provide information relating to the underlying processes responsible for macroscopic behavior. Fluctuations in the growth rates of university research activities were analyzed based on five different measures of research activity. Growth rate distribution did not depend on the size of the university or on the measure of size used. The findings are consistent with the hypothesis that the growth dynamics of complex organizations are ruled by universal mechanisms.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
A theory of power-law distributions in financial market fluctuations
Article Abstract:
Research shows that the power laws of the financial market arise when the trading behaviour of the stock market is optimum. Data indicate that large movements in stock market activity are due to the trades from the large participants. There appears to be some relationship between large price fluctuations, volume trading and the number of trades.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Canada's medical council wants larger role. Canadian research council found guilty of job bias. Job refusal sparks row over mind-drug critic
- Abstracts: Organizational challenges in clinical genomic research. New lease of life for tropical medicine. Sacrifice for the greater good?
- Abstracts: Suppression of anoikis and induction of metastasis by the neurotrophic receptor TrkB. PAC1 phosphatase is a transcription target of p53 in signalling apoptosis and gowth suppression
- Abstracts: Trench-parallel flow and seismic anisotropy in the Mariana and Andean subduction systems. Roots of the matter
- Abstracts: Greasing the Golgi budding machine. Synaptic function modulated by changes in the ratio of synaptotagmin I and IV