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arXiv · 1301.0560

Generalized Instrumental Variables

Carlos Brito·Judea Pearl
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Abstract

This paper concerns the assessment of direct causal effects from a combination of: (i) non-experimental data, and (ii) qualitative domain knowledge. Domain knowledge is encoded in the form of a directed acyclic graph (DAG), in which all interactions are assumed linear, and some variables are presumed to be unobserved. We provide a generalization of the well-known method of Instrumental Variables, which allows its application to models with few conditional independeces.

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Carlos Brito, Judea Pearl. 2012-12-12. Generalized Instrumental Variables. https://arxiv.org/abs/1301.0560

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