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Published online 3 January 2001 | Nature | doi:10.1038/news010104-1

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Stockbrokers may act like sheep

Herd mentality could be driving the fierce world of finance, a new mathematical model shows.

There is a man-made system upon whose complex, poorly understood behaviour the lives of billions depend. This is no DNA-engineered super-virus, nor the simmering hydrocarbon gravy that is our atmosphere.

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