So the survivorship bias and the backfill bias would be much, much more of a problem in the hedge fund world.
所以生存偏差和回填偏差,会是对冲基金领域里一个相当重大的问题。
So, we're talking about a group of funds that in aggregate probably produced somewhere in the low teens returns and he's got 11.7% per year combined survivorship bias and backfill bias.
因此我们说这组基金总体上,大概产生了略高于10%的收益率,他算出的数字是每年11.7%,结合了生存偏差和回填偏差。
Then if you adjust for survivorship bias, you end up concluding that the deficit wasn't .3% but the deficit was actually 2%.
那么如果你算上生存偏差,你会发现,缺口不是0.3%,事实上是2%
One is survivorship bias in the Numbers.
一种是幸存者偏差。
Survivorship bias is the wrong estimation of fund performance due to the disappearance of some funds from the research sample.
生存偏差效应是指在基金绩效研究中不考虑已退市基金的做法可能会导致人们对基金绩效的错误估计。
This "survivorship bias" ignores the many traders whose losses from using charts drive them out of the market.
但这种“幸存者偏见(survivorship bias)”忽略了许多因为依靠图表分析遭受损失最终退市的投资者。
This "survivorship bias" ignores the many traders whose losses from using charts drive them out of the market.
但这种“幸存者偏见(survivorship bias)”忽略了许多因为依靠图表分析遭受损失最终退市的投资者。
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