Researchers find out that investing in small firms can generate the risk-adjusted return higher than the reasonable level. This result can be considered as [1] Evidence against strong form efficient market hypothesis. [II] Evidence against semi-strong form efficient market hypothesis. [III] Evidence against weak form efficient market hypothesis. [1) only. [II] only. А. В. [III] only. [1] and [II] only. С. D. Е. [1), [II] and [III].

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