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Triply Robust Panel Estimators 🛡: When You Don't Know Which Assumptions Hold
TL;DR Athey, Imbens, Qu, and Viviano introduce the Triply RObust Panel (TROP) estimator, which combines unit weights, time weights, and a flexible low-rank factor model to estimate causal effects in panel data.
Oct 20, 2025 7 min read econometrics, causal inference