Associated Press

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Americans Eugene Fama, Lars Peter Hansen and Robert Shiller won the Nobel prize for economics on Monday for developing new methods to study trends in asset markets.

The Royal Swedish Academy of Sciences said the three had laid the foundation of the current understanding of asset prices.

While it's hard to predict whether stock or bond prices will go up or down in the short term, it's possible to foresee movements over periods of three years or longer, the academy said.

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