...据其对竞争与垄断差异假设的 不同,Fee和Hadlock(2000)将这些理论总结为以卜四个假说,即信息假说 (Information Hypothesis)、清算威胁假说(Threat of Liquidation Hypothesis)、管理技术假说(ManagerialTechnologyHypothesis)和战略选择 假说(Strat...
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The differential information hypothesis advanced by Atiase (1980 and 1985) postulates that the costs of information research are fixed and constant across firm size and information production increases with firm size.
由Atiase(1980和1985)提出的差别信息假说,假定信息收集的成本是固定的,信息的生产随着公司规模而增加。
参考来源 - 中国股市大公司股票与小公司股票收益关系的实证研究·2,447,543篇论文数据,部分数据来源于NoteExpress
然而,越来越多的研究对信息假说提出了质疑。
However, more and more studies have challenged the information hypothesis.
当玩家解开难题或者论证了科学猜想,比如在新信息的基础上修正假说,他们就能获得徽章和绩点。
Players earn badges and achievement points when they solve puzzles or demonstrate scientific thinking, such as revising a hypothesis based on new information.
这些不对称很难与有效市场假说相符——根据该假说,证券价格应准确反映出所有已知信息。
These asymmetries are difficult to reconcile with the efficient market hypothesis, the notion that securities prices accurately reflect all known information.
Efficient markets" is a theory about-- well it came in about three decades ago, maybe it's closer to four decades ago-- it's a theory that financial markets work very well and incorporate information very well.
有效市场是...,大约三十年前,甚至四十年前,有人提出了这一假说,他认为金融市场运行良好,而且信息披露全透明
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