Online First Journal of Political Economy Online 21 Aug 2026Debiasing and T-Tests for Synthetic Control Inference on Average Causal EffectsVictor Chernozhukov · Kaspar Wüthrich · Yinchu ZhuChernozhukov, Wüthrich, and Zhu propose a debiased synthetic control (SC) estimator and an accompanying self-normalized t-test for making inferences on the average treatment effect on the treated …