Methoden vergleichen

	Heterogene Behandlungseffekte mittels Coarsened Exact Matching	Differenz-in-Differenzen (DiD)
Fachgebiet	Kausale Inferenz	Ökonometrie
Familie	Regression model	Regression model
Entstehungsjahr	2012-2013	1994
Urheber	Iacus, King & Porro (CEM foundation, 2012); subgroup HTE extensions by Imai & colleagues	Card & Krueger (canonical 1994 application); Angrist & Pischke (textbook treatment)
Typ	Matching-based causal inference with subgroup CATE estimation	Causal inference / panel regression
Wegweisende Quelle	Iacus, S. M., King, G., & Porro, G. (2012). Causal Inference without Balance Checking: Coarsened Exact Matching. Political Analysis, 20(1), 1-24.	Angrist, J. D., & Pischke, J.-S. (2009). Mostly Harmless Econometrics: An Empiricist's Companion. Princeton University Press. ISBN: 978-0691120355
Aliasnamen	HTE-CEM, CEM with CATE estimation, subgroup CEM, coarsened exact matching with effect heterogeneity	diff-in-diff, DiD, Farkların Farkı (Diff-in-Diff)
Verwandt	5	5
Zusammenfassung	Heterogeneous treatment effect coarsened exact matching (HTE-CEM) extends the coarsened exact matching framework to estimate how treatment effects vary across subgroups or individual characteristics. After CEM creates balanced strata by coarsening continuous covariates into bins and exactly matching units within each bin, conditional average treatment effects (CATEs) are computed within or across these strata, revealing where treatment works, for whom, and by how much.	Difference-in-Differences is a causal-inference method that estimates the effect of an intervention by comparing how a treatment group and a control group change over time. Made famous by Card and Krueger's 1994 minimum-wage study and developed in Angrist and Pischke's Mostly Harmless Econometrics, it isolates the treatment effect as the difference between the two groups' before-after changes.