On the Monotonicity of a Nondifferentially Mismeasured Binary Confounder

Peña Jose M. ()
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Peña Jose M.: IDA, Linköping University, LinköpingSweden

Journal of Causal Inference, 2020, vol. 8, issue 1, 150-163

Abstract: Suppose that we are interested in the average causal effect of a binary treatment on an outcome when this relationship is confounded by a binary confounder. Suppose that the confounder is unobserved but a nondifferential proxy of it is observed. We show that, under certain monotonicity assumption that is empirically verifiable, adjusting for the proxy produces a measure of the effect that is between the unadjusted and the true measures.

Keywords: average causal effect; confounding; monotonicity (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:bpj:causin:v:8:y:2020:i:1:p:150-163:n:8

DOI: 10.1515/jci-2020-0014

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