st: robust estimators and auotcorrelation

[Robin Gottfried <rgottfri@sewanee.edu>]

I am using xtgee, robust, to estimate a probit equation for panel 
data. xtserial indicates I have autocorrelation in the data.

Does robust estimation correct for autocorrelation or should I also 
use the Arima correction along with the robust estimation?
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