标普指数收益率和GDP增速的相关系数为0.1左右，几乎为零。股票的长期收益来自于利润率和利润的增长率。

来源: 硅谷居士于 2023-12-26 10:47:12 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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