问题如下图:
选项:
A.
B.
C.
解释:
老师 能解释题目问的是什么呢?
NO.PZ2015122802000092问题如下If a researcher concting empirictests of a trang strategy using time series of returns fin statistically significant abnormreturns, then the researcher hmost likely founA.a market anomaly.B.evinof market inefficiency.C.a strategy to profuture abnormreturns. is correct.Finng significant abnormreturns es not necessarily incate thmarkets are inefficient or thabnormreturns crealizeapplying the strategy to future time perio. Abnormreturns are consiremarket anomalies because they mthe result of the mol useto estimate the expectereturns or mthe result of unrestimating transaction costs or other expenses associatewith implementing the strategy, rather thbecause of market inefficiency.考点Tests, Implications AnConclusions Of EMH这道题就是问你实证研究表明一些交易策略在统计上是显著的可以获得超额回报,这代表我们发现了什么。首先市场异象并不能推翻有效市场假说(B错)。我们看到的这些市场异象(通过一些规律获得超额回报),通常都是由于统计研究方法的使用所导致的(低估交易费用或其他成本),而并不代表真的能获得超额回报(C错)。因此本题描述的情况就是一种市场异象,因此选怎么理解B?为何B的意思是推翻有效市场假说?
NO.PZ2015122802000092 什么情况下能推翻市场有效假说?
NO.PZ2015122802000092 evinof market inefficiency. a strategy to profuture abnormreturns. A is correct. Finng significant abnormreturns es not necessarily incate thmarkets are inefficient or thabnormreturns crealizeapplying the strategy to future time perio. Abnormreturns are consiremarket anomalies because they mthe result of the mol useto estimate the expectereturns or mthe result of unrestimating transaction costs or other expenses associatewith implementing the strategy, rather thbecause of market inefficiency. 考点Tests, Implications AnConclusions Of EMH 这道题就是问你实证研究表明一些交易策略在统计上是显著的可以获得超额回报,这代表我们发现了什么。 首先市场异象并不能推翻有效市场假说(B错)。我们看到的这些市场异象(通过一些规律获得超额回报),通常都是由于统计研究方法的使用所导致的(低估交易费用或其他成本),而并不代表真的能获得超额回报(C错)。 因此本题描述的情况就是一种市场异象,因此选老师,在题目中如何确定是通过模型得到超额收益,也就是可以通过价量分析得到超额回报,还是只是这个超额回报是异象,如何区分这种尺度?一般文章中是怎么表述的来判断这个?
No.PZ2015122802000092 (选择题) If a researcher concting empirictests of a trang strategy using time series of returns fin statistically significant abnormreturns, then the researcher has most likely foun 正确答案是: A a market anomaly. B evinof market inefficiency. C 不正确a strategy to profuture abnormreturns. 数据统计(全部) 做对次数: 1320 做错次数: 783 正确率: 62.77% 数据统计(个人) 做对次数: 0 做错次数: 0 正确率: 0% 解析 A is correct. Finng significant abnormreturns es not necessarily incate thmarkets are inefficient or thabnormreturns crealizeapplying the strategy to future time perio. Abnormreturns are consiremarket anomalies because they mthe result of the mol useto estimate the expectereturns or mthe result of unrestimating transaction costs or other expenses associatewith implementing the strategy, rather thbecause of market inefficiency. c为什么不对,这道题没有读懂要考察什么,其他人的提问的回答也没看懂