PACS. 02.50.-r Probability theory, stochastic processes, and statistics;
05.40.-a Fluctuation phenomena, random processes, noise, and Brownian motion;
89.90.+n Other topics of general interest to physicists;
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摘要:
In order to emphasize cross-correlations for fluctuations in major market places, series of up and down spins are built from financial data. Patterns frequencies are measured, and statistical tests performed. Strong cross-correlations are emphasized, proving that market moves are collective behaviors.