Re: st: Issue with vce command

[Maarten buis <maartenbuis@yahoo.co.uk>]

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


--- Davia Downey wrote:
> I have a panel type dataset with 43 variables and 25
> observations (i.e., 5 years worth of data for 5 counties). I
> have tried running the panel regression using the xtreg, re
> command as well as regress with the vce (cluster county)
> command. The problem is that neither command is producing
> standard errors (there's just a . in the standard error
> column). Essentially the model is useless. 

Jeff answered your question, let me just add that I would 
analyse such data by making a set of bivariate graphs of the 
data. Maybe using different colors for different countries 
(see -help separate-) and showing the time path by linking 
them with arrows (see: Cox 2005). 

Hope this helps,
Maarten

Nicholas J. Cox (2005) "Stata tip 21: The arrows of outrageous 
fortune" The Stata Journal, 5(2):282-284.
<http://www.stata-journal.com/article.html?article=gr0015>


      

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/