Can Google Predict the Stock Market? - ScienceNOW - 2 views
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Luís F. Simões on 15 Nov 10in related news: Twitter Mood Predicts The Stock Market "An analysis of almost 10 million tweets from 2008 shows how they can be used to predict stock market movements up to 6 days in advance" http://www.technologyreview.com/blog/arxiv/25900/ http://arxiv.org/abs/1010.3003
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Francesco Biscani on 16 Nov 10Likewise, I can predict the statistical properties of white noise :-)
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nikolas smyrlakis on 18 Nov 10the problem is that usually the google search queries and the twitter updates happen after a crisis for example. I dont really think that people all over the world suddenly realised that Lehman would collapse and started googling it like crazy before it collapsed. More likely they did it afterwards.