151164591
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The efficient-market hypothesis (EMH) is a hypothesis in financial economics that states that asset prices reflect all available information.
A direct implication is that it is impossible to "beat the market" consistently on a risk-adjusted basis since market prices should only react to new information.
If the market is inefficient, it's possible for active managers to outperform the stock market by picking the "good stocks" and staying away from the ...
A direct implication is that it is impossible to "beat the market" consistently on a risk-adjusted basis since market prices should only react to new information.
If the market is inefficient, it's possible for active managers to outperform the stock market by picking the "good stocks" and staying away from the ...
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151164591 : 時間と空間の伝達が必要なため、価格は完全には反映されていません。市場には最終的に情報が反映されますが、それには時間がかかります。これは推測の余地があります。