https://macropaperwarehouse.com/authors/yinchu-zhu/Yinchu ZhuHugo -- gohugo.ioen-ushttps://macropaperwarehouse.com/papers/debiasing-and-t-tests-for-synthetic-control-inference-on-average-causal-effects/https://macropaperwarehouse.com/papers/debiasing-and-t-tests-for-synthetic-control-inference-on-average-causal-effects/<p>Chernozhukov, 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 (ATT) in aggregate panel data settings with one treated unit. The inferential target is the time-averaged treatment effect τ = (1/T1) Σ_{t=T0+1}^{T} (Y0t(1) − Y0t(0)), a one-number summary of the overall causal impact that admits standard-form confidence intervals, in contrast to per-period effects (which cannot be consistently estimated with one treated unit) and sharp null hypotheses (which do not inform effect magnitude).</p>