The degree to which the prices of assets reflect the available marketplace information.
Related information about price efficiency:
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 The theory of price efficiency follows from the efficient market hypothesis, which   holds that since markets are efficient, it is nearly impossible for investors to "beat ...
 
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 Definition of price efficiency: The degree to which the prices of assets reflect the   available marketplace information.
 
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 Definition of price efficiency: Degree to which market value of assets reflects the   available marketplace (supply and demand) information.
 
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 Dec 4, 2006 ... This article studies how stock price efficiency and the distribution of returns are   affected by short-sale constraints. The study is based on a ...
 
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