This kind of difference of voluntary disclosure among industries is systematic, but not the peculiar behavior of a certain company.

行业间的这种自愿披露的差异是系统的，而不是某一个公司特有的行为。

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Then, from the Angle of behavior economics, this thesis analyzes that managers may not have enough motivation to supply voluntary information, and voluntary disclosure appears to be dissimilated.

然后，本文从行为经济学的角度，论述了自愿披露行为会出现动因不足及异化。

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