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st: Pooled mean group and mean group estimator - xtpmg command
From
"Terzopoulou, Eleftheria" <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: Pooled mean group and mean group estimator - xtpmg command
Date
Thu, 16 Jun 2011 19:03:55 +0100
Dear Statalisters,
I would like to ask how I can include time trend in pooled mean group and mean group estimators. When I add i.years it says that my action can not be done. In the Stata Journal(2007) 7,Number 2 pp.197-208 mentions the possibility to include time trend without showing how to do that.The command used is xtpmg. Additionally, in case of heteroskedasticity and autocorrelation that command gives me inefficient results?how can I use robust standard errors?
Thank you
Elli
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