ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] FIG. 1 a, Probability distributions P(Z) of the S&P 500 index variations Z(t) observed at time intervals At, which range from 1 to 1,000 min. By increasing At, a spreading of the probability distribution characteristic of a random walk is observed, b, Probability of return P(0) of Z(t) as a ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/376046a0
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