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Temporal and Cross Correlations in Business News

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Fig. 1. Time series of the daily number of news reports. The number of news reports in English is counted
Fig. 2. Number of news reports per minute for a particular week, Feb. 15-22, 2003. The number of news reports in English is counted.
Fig. 4. Probability functions for the frequency of news on Citi, Exxon, and Tyco International
Table III. Augmented Dickey-Fuller test for the Citi, Exxon, and Tyco International time series Trend Drift None
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