Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bespoke Instrumental Variables for Causal Inference   Many proposals for the identification of causal effects in the presence of
unmeasured confounding require an instrumental variable or negative control
that satisfies strong, untestable assumptions. In this paper, we will instead
show how one can identify causal effects for a point exposure by using a
measured confounder as a 'bespoke instrumental variable'. This strategy
requires an external reference population that does not have access to the
exposure, and a stability condition on the confounder outcome association
between reference and target populations. Building on recent identification
results of Richardson and Tchetgen Tchetgen (2021), we develop the
semiparametric efficiency theory for a general bespoke instrumental variable
model, and obtain a multiply robust locally efficient estimator of the average
treatment effect in the treated.

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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
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The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: physics
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The categories of this paper are: hep-lat
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The categories of this paper are: nlin
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The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph