방법 비교

	이질적 처리 효과 인과 영향 분석	인과 충격 분석
분야	인과추론	인과추론
계열	Regression model	Regression model
기원 연도	2015-2016	2015
창시자	Brodersen et al. (causal impact framework, 2015); Athey & Imbens (HTE estimation, 2016)	Kay H. Brodersen, Fabian Gallusser, Jim Koehler, Nicolas Remy, Steven L. Scott (Google)
유형	Causal inference / heterogeneous effects estimation	Bayesian causal inference / counterfactual forecasting
원전	Brodersen, K. H., Gallusser, F., Koehler, J., Remy, N., & Scott, S. L. (2015). Inferring causal impact using Bayesian structural time-series models. Annals of Applied Statistics, 9(1), 247-274.	Brodersen, K. H., Gallusser, F., Koehler, J., Remy, N., & Scott, S. L. (2015). Inferring causal impact using Bayesian structural time-series models. Annals of Applied Statistics, 9(1), 247-274.
별칭	HTE-CausalImpact, CATE causal impact, heterogeneous causal impact, subgroup causal impact analysis	CausalImpact, BSTS causal inference, Bayesian causal impact, counterfactual time-series analysis
관련	5	5
요약	Heterogeneous treatment effect causal impact analysis extends the Bayesian structural time-series causal impact framework to estimate not just the average effect of an intervention but how that effect varies across subgroups or individual units. By combining counterfactual prediction with conditional average treatment effect (CATE) estimation, it reveals which groups benefit most or least from an intervention.	Causal Impact Analysis, introduced by Brodersen et al. (2015) at Google, uses Bayesian structural time-series models to estimate what would have happened to an outcome had an intervention never occurred. By constructing a probabilistic counterfactual from pre-treatment data and control covariates, it quantifies point-in-time and cumulative treatment effects with full posterior uncertainty intervals.