This paper focuses on inference based on the usual panel data estimators of a one-way error component regression model when the true specification is a spatial error component model. Among the estimators considered, are pooled OLS, random and fixed effects, maximum likelihood under normality, etc. The spatial effects capture the cross-section dependence, and the usual panel data estimators ignore this dependence. Two popular forms of spatial autocorrelation are considered, namely, spatial auto-regressive random effects (SAR-RE) and spatial moving average random effects (SMA-RE). We show that when the spatial coefficients are large, test of hypothesis based on the usual panel data estimators that ignore spatial dependence can lead to misleading inference.
Panel data; Hausman test; Random effect; spatial autocorrelation; Maximum Likelihood
Working Papers Series
Baltagi, Badi H. and Pirotte, Alain, "Panel Data Inference under Spatial Dependence" (2010). Center for Policy Research. 168.
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