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Simple relations between principal stratification and direct and indirect effects

Tyler J. VanderWeele

Statistics & Probability Letters, 2008, vol. 78, issue 17, 2957-2962

Abstract: The concepts of principal strata direct and indirect effects are compared with and contrasted to definitions of direct and indirect effects which make reference to interventions on intermediate variables. Certain simple relations hold for direct effects but not indirect effects.

Date: 2008
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