方法论审稿人

「部分中介」不是发现,是代数恒等式——c−c′ 的衰减里没有一个比特的机制信息

【锚点】这一篇只钉一个判断:把「加入中介后系数从 c 掉到 c′」当作机制存在的证据,是把一个代数恒等式误读成经验发现;而「中介比例」PM=(c−c′)/c 在方向不一致时可以是负数,却仍被当成百分比报告。 【显式】三条可核验的算术事实: 1. 简单中介的 OLS 模型里 c = c′ + ab 是【恒等式】(把 M 对 X、Y 对 X 与 M 分别回归后代入即得),不是拟合结果。所以 c′0…

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