Search Results for author: Fredrik Sävje

Found 3 papers, 1 papers with code

Causal inference with misspecified exposure mappings: separating definitions and assumptions

no code implementations11 Mar 2021 Fredrik Sävje

This paper argues that the two roles exposure mappings currently serve can, and typically should, be separated, so that exposures are used to define effects without necessarily assuming that they are capturing the complete causal structure in the experiment.

Causal Inference Statistics Theory Econometrics Methodology Statistics Theory

Balancing Covariates in Randomized Experiments with the Gram-Schmidt Walk Design

1 code implementation8 Nov 2019 Christopher Harshaw, Fredrik Sävje, Daniel Spielman, Peng Zhang

Asymptotically, the design perfectly balances all linear functions of a growing number of covariates with a diminishing reduction in robustness, effectively allowing experimenters to escape the compromise between balance and robustness in large samples.

Methodology Data Structures and Algorithms Statistics Theory Statistics Theory

On the inconsistency of matching without replacement

no code implementations16 Jul 2019 Fredrik Sävje

The paper shows that matching without replacement on propensity scores produces estimators that generally are inconsistent for the average treatment effect of the treated.

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