Mimicry among stocks can predict stock market crashes

(PhysOrg.com) -- Since early October 2008, when the Dow Jones Industrial Average began its drop that reached a low point the following March, many questions have been raised - particularly about what caused the crash and ...

Metric predicts stock market 'flash' crashes

The May 6, 2010, stock market crash briefly erased almost $1 trillion in value and plunged the Dow Jones Industrial Average into its biggest intraday fall ever. The market recovered most of its losses within the hour, but ...

Model describes Web page popularity

(PhysOrg.com) -- How do some Web pages become popular? In a recent study, researchers have analyzed Wikipedia articles and a collection of all the Web pages of Chile to better understand the dynamics of online popularity. ...

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