Prediction-Powered Causal Inference by Automatic Debiased Machine Learning and Semi-Supervised Riesz Regression
Researchers have introduced a new framework called Prediction-Powered Causal Inference (PPCI) to improve the estimation of causal and structural parameters. This method leverages unlabeled auxiliary regressors alongside labeled data to achieve smaller asymptotic variances than methods using only labeled observations. The proposed DML-PPCI methods, including EE-DML-PPCI and TMLE-DML-PPCI, are designed to match a derived efficiency bound and utilize Neyman orthogonal scores for estimation. AI