Unverified50% confidenceFactExact time
Malkiel和Saha在2005年的研究发现，仅幸存者偏差一项就可能使对冲基金的年化收益被高估约4.4个百分点
1
Sources
50%
Confidence
Long-term
Relevance
8/12/2026
First Seen
Sources
金融机器学习模型为何难以评估？核心挑战与避坑指南
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