Comparing Fixed Effects and Covariance Structure Estimators
AbstractIn this paper we compare the traditional econometric fixed effect/first difference estimator with the maximum likelihood estimator implied by covariance structure models for panel data. Our findings are that the maximum likelihood estimator is remarkable robust to mis-specifications, however in general the fixed estimator is preferable in small samples. Furthermore, we argue that we can use the Hausman test as a test of consistency of the maximum likelihood estimator. Finally we show that the covariance structure models is not identified in the case of time-invariant independent variables.
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Bibliographic InfoPaper provided by University of Copenhagen. Department of Economics. Centre for Applied Microeconometrics in its series CAM Working Papers with number 2004-02.
Length: 17 pages
Date of creation: Jan 2004
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- Anders Holm & Mads Meier Jæger & Morten Pedersen, 2008. "Unobserved Heterogeneity in the Binary Logit Model with Cross-Sectional Data and Short Panels: A Finite Mixture Approach," CAM Working Papers 2009-04, University of Copenhagen. Department of Economics. Centre for Applied Microeconometrics.
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