Interpretation and identification of causal mediation.

  title={Interpretation and identification of causal mediation.},
  author={Judea Pearl},
  journal={Psychological methods},
  volume={19 4},
This article reviews the foundations of causal mediation analysis and offers a general and transparent account of the conditions necessary for the identification of natural direct and indirect effects, thus facilitating a more informed judgment of the plausibility of these conditions in specific applications. I show that the conditions usually cited in the literature are overly restrictive and can be relaxed substantially without compromising identification. In particular, I show that natural… CONTINUE READING


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