Suing the cluster option in the econometrics package Stata, the fully robust standard errors for pooled OLS
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(i) How do these standard errors generally compare with the nonrobust ones, and why?
(ii) How do the robust standard errors for pooled OLS compare with the standard errors for RE? Does it seem to matter whether the explanatory variable is time-constant or time-varying?
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Related Book For
Introductory Econometrics A Modern Approach
ISBN: 978-0324660548
4th edition
Authors: Jeffrey M. Wooldridge
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