Level-Based Estimation of Dynamic Panel Models

Gabriel Montes-Rojas (), Sosa-Escudero Walter and Federico Zincenko
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Sosa-Escudero Walter: Universidad de San Andrés-CONICET, Buenos Aires, Argentina
Authors registered in the RePEc Author Service: Walter Sosa Escudero ()

Journal of Econometric Methods, 2020, vol. 9, issue 1, 23

Abstract: This paper develops an alternative estimator for linear dynamic panel data models based on parameterizing the covariances between covariates and unobserved time-invariant effects. A GMM framework is used to derive an optimal estimator based on moment conditions in levels, with no efficiency loss compared to the classic alternatives like (Arellano, M., and S. Bond. 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), (Ahn, S. C., and P. Schmidt. 1995. “Efficient Estimation of Models for Dynamic Panel Data.” Journal of Econometrics 68 (1): 5–27) and (Ahn, S. C., and P. Schmidt. 1997. “Efficient Estimation of Dynamic Panel Data Models: Alternative Assumptions and Simplified Estimation.” Journal of Econometrics 76: 309–321). Still, we show analytically and by Monte Carlo simulations that the new procedure leads to efficiency improvements for certain data generating processes. The framework also leads to a very simple test for unobserved effects.

Keywords: asymptotic efficiency; dynamic panel; GMM estimation; individual effects; short panel (search for similar items in EconPapers)
JEL-codes: C12 C23 (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1515/jem-2018-0015

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