Dear Statalist,
I've attempted to check for cross-sectional dependence in panel-data
models using the command -xtcsd-
i do as the following
xtreg depv indv1 indv2 indv3 ...indv10, fe
then;
-xtcsd, pesaran abs-
stata gives ;
unknown function *sqrt()
r(133);
in addtion when - xtcsd, frees- is implemented
the errors are ;
-There are not enough common observations to perform Frees or Friedmand tests-
then when xtcsd, pesaran is implemented;
does anyone know how to solve this problem?
Thank you very much in advance,
M.Frank
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