Σύγκριση μεθόδων

	Εκτιμητής GMM Arellano-Bond Robust	Εκτιμητής GMM Arellano-Bond
Πεδίο	Οικονομετρία	Οικονομετρία
Οικογένεια	Regression model	Regression model
Έτος προέλευσης	1991	1991
Δημιουργός	Arellano & Bond (1991); robust inference extensions by Windmeijer (2005)	Manuel Arellano and Stephen Bond
Τύπος	Dynamic panel GMM estimator with robust inference	GMM estimator for dynamic panel data
Θεμελιώδης πηγή	Arellano, M., & Bond, S. (1991). Some tests of specification for panel data: Monte Carlo evidence and an application to employment equations. The Review of Economic Studies, 58(2), 277-297.	Arellano, M., & Bond, S. (1991). Some tests of specification for panel data: Monte Carlo evidence and an application to employment equations. Review of Economic Studies, 58(2), 277-297.
Εναλλακτικές ονομασίες	Robust Difference GMM, AB-GMM with robust standard errors, Robust first-difference GMM, Arellano-Bond robust estimator	AB-GMM, Difference GMM, first-difference GMM, Arellano-Bond estimator
Συναφείς	6	5
Σύνοψη	The Robust Arellano-Bond GMM estimator applies the Arellano-Bond first-difference GMM approach to dynamic panel data while computing heteroscedasticity- and autocorrelation-consistent (robust) standard errors. This combination handles the Nickell bias from lagged dependent variables and simultaneously yields reliable inference when error variances differ across units or periods.	The Arellano-Bond GMM estimator is the standard approach for dynamic panel data models in which the lagged dependent variable appears as a regressor. By first-differencing to remove fixed effects and using deeper lags as instruments, it yields consistent estimates even when the error is serially correlated and regressors are endogenous.