Feature selection in stratification estimators of causal effects:
lessons from potential outcomes, causal diagrams, and structural equations
- URL: http://arxiv.org/abs/2209.11400v1
- Date: Fri, 23 Sep 2022 04:20:50 GMT
- Title: Feature selection in stratification estimators of causal effects:
lessons from potential outcomes, causal diagrams, and structural equations
- Authors: P. Richard Hahn, Andrew Herren
- Abstract summary: This approach clarifies the fundamental statistical phenomena underlying many widely-cited results.
Our exposition combines insights from three distinct methodological traditions for studying causal effect estimation.
- Score: 0.456877715768796
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: What is the ideal regression (if any) for estimating average causal effects?
We study this question in the setting of discrete covariates, deriving
expressions for the finite-sample variance of various stratification
estimators. This approach clarifies the fundamental statistical phenomena
underlying many widely-cited results. Our exposition combines insights from
three distinct methodological traditions for studying causal effect estimation:
potential outcomes, causal diagrams, and structural models with additive
errors.
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