CPU times: user 50.4 s, sys: 7.52 s, total: 57.9 s
Wall time: 32.9 s
弱式有效市场
尽管根据
弱式
有效市场的标签数据并没有证实统计失效,但仅依赖于时间序
列数据去证明统计失效本身就是十分困难的。在半强式有效市场的形式下,
可以加入其他公开市场数据以提升预测准确率。
实验结果似乎证明市场应该是弱有效的,但仅仅通过
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