Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: Fixed effects = insufficient observations?
From
Tharshini Thangavelu <[email protected]>
To
<[email protected]>
Subject
st: Fixed effects = insufficient observations?
Date
Fri, 17 Sep 2010 11:59:17 +0200
Dear stata list members,
I have a problem concerning fixed effects. I have a dataset which consists
of variables that I have merged from different sources. It is a
longitudinal data (= panel data) for 187 countries for year between
1970-2010. It is an unbalanced dataset. The dataset consists of variables
such as doing business from the worldbank, GEM and COMPENDIA.
When I try to do a fixed effects regression, I get a message: insufficient
obervations. I try with different specifications.
As my control variables, I have, all doingbusines variables(only
rankings), GDP per capita, education, unemployment and industry structure.
When I exclude education variable (= gross enrollement rate (%) secondary
from teh WorldBank, the obervations can be more than 100), it seems to be
working.
The education variable is a integer variable and I have other variables
that are integer without any kind of problems. Have someone had the same
problem with this variable?
Regards
Tharshini
--
____________________________________
Tharshini Thangavelu
Forskarbacken 19, 2tr
114 16 Stockholm
Mob 0735 53 43 90
Epost [email protected]
*
* 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/