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A SPATIAL DYNAMIC PANEL DATA MODEL WITHBOTH TIME AND INDIVIDUAL FIXEDEFFECTS

Published online by Cambridge University Press:  18 August 2009

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Abstract

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This paper establishes asymptotic properties ofquasi-maximum likelihood estimators for spatialdynamic panel data with both time and individualfixed effects when the number of individualsn and the number of time periodsT can be large. We propose a datatransformation approach to eliminate the timeeffects. When n / T → 0, theestimators are $\root \of
                                                  {nT}$ consistent andasymptotically centered normal; whenn is asymptotically proportionalto T, they are $\root \of
                                                  {nT}$ consistent andasymptotically normal, but the limit distribution isnot centered around 0; when n / T →∞, the estimators are consistent with rateT and have a degenerate limitdistribution. We also propose a bias correction forour estimators. When n1/3 /T → 0, the correction willasymptotically eliminate the bias and yield acentered confidence interval. The estimates from thetransformation approach can be consistent whenn is a fixed finite number.

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Type
Research Article
Copyright
Copyright © Cambridge University Press 2009