Efficientmarkethypothesis:problems

由 VL Bernard 著作 · 被引用 1 次 — Whether in fact stock markets are as efficient as believed at the time of the Basic decision has been questioned in recent research in financial economics.

由 BG Malkiel 著作 · 被引用 4418 次 — The general problem with these predictable patterns or anomalies, however, is that they are not dependable from period to period. Wall Street traders now joke.

2022年5月11日 — The efficient market hypothesis argues that current stock prices reflect all existing available information, making them fairly valued as ...

The Efficient Market Hypothesis (EMH) is an investment theory stating that share prices reflect all information and consistent alpha generation is impossible.

The efficient markets hypothesis (EMH) argues that markets are efficient, leaving no room to make excess profits by investing since everything is already fairly ...

2020年7月21日 — In simple terms, the efficient market hypothesis says that stock prices accurately reflect all available information at any given time. While ...

In the Litvinova and Ou-Yang model, when more agents acquire information, the marginal benefit of each agent's information decreases. Marginal benefit may thus ...

由 PS Russel 著作 · 被引用 49 次 — Researchers repeatedly challenged the studies based on EMH by raising critical questions such as: Can the movement in prices be fully attributed to the ...