[转载] Do we need to do research given efficient market hypothesis?# Economics - 经济
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【 以下文字转载自 Business 讨论区 】
【 原文由 hurhur 所发表 】
Suppose we accept the efficient market hypothesis. Do we need to do research?
This is a very important question. However, before we answer the question, we
first need to understand the actual definition of efficient market hypothesis.
The strongest one is that all information is incorporated into price. Let's
take that one as true. Do we need to do academic research given that? Still
yes. Think about Fama-French three-factor model. (I believe industry
【 原文由 hurhur 所发表 】
Suppose we accept the efficient market hypothesis. Do we need to do research?
This is a very important question. However, before we answer the question, we
first need to understand the actual definition of efficient market hypothesis.
The strongest one is that all information is incorporated into price. Let's
take that one as true. Do we need to do academic research given that? Still
yes. Think about Fama-French three-factor model. (I believe industry