Módszerek összehasonlítása

	Bayesian Instrumental Variables (Bayesian IV)	Instrumentális Változók (IV) Módszer Kauzális Infláció Becslésére
Tudományterület	Oksági következtetés	Egészség-gazdaságtan
Módszercsalád	Regression model	Process / pipeline
Keletkezés éve	2003	1990s (modern applications)
Megalkotó	Kleibergen & Zivot (2003); Lancaster (2004)	Angrist & Pischke (applied econometrics); rooted in econometric theory
Típus	Causal inference / Bayesian estimation	Method
Alapmű	Kleibergen, F., & Zivot, E. (2003). Bayesian and classical approaches to instrumental variable regression. Journal of Econometrics, 114(1), 29-72.	Angrist, J. D., & Pischke, J. S. (2009). Mostly Harmless Econometrics: An Empiricist's Companion. Princeton: Princeton University Press.
Alternatív nevek	Bayesian IV, Bayesian 2SLS, Bayesian LIML, BayesIV	IV, two-stage least squares, TSLS, causal estimation
Kapcsolódó	6	3
Összefoglaló	Bayesian Instrumental Variables combines the instrumental variable strategy for addressing endogeneity with Bayesian posterior inference. Instead of relying on asymptotic sampling distributions, it places prior distributions over all structural parameters and recovers a full posterior distribution for the causal effect, providing probability statements about the parameter rather than p-values — especially valuable when instruments are weak or the sample is small.	Instrumental variables (IV) is an econometric method to estimate causal effects when treatment or exposure is not randomly assigned and confounding is severe or unmeasured. IV relies on a third variable (instrument) that influences treatment but does not directly affect the outcome, allowing researchers to isolate the causal effect from the noise of confounding. Developed extensively in econometrics (Angrist & Pischke, 1990s–2000s), IV methods are increasingly used in health economics and health services research to leverage natural experiments and policy changes.