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. 2012 Jul 19;7(7):e40014. doi: 10.1371/journal.pone.0040014

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Bordino et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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The fraction of one-time searchers appear to be very stable in time and we do not observe a correlation of these kind of users with anomalous trading volume or price movements.