st: xttest2 - Error: too few common observations across panel

["Pavlos C. Symeou" <p.symeou@jbs.cam.ac.uk>]

Dear Statalisters,

I run a FE panel data model and attempt to assess cross-sectional
correlation using xttest2. However, I get the following error:

Error: too few common observations across panel.
no observations

Does anyone know why I get this, what I should do; or, otherwise, is there
any other test for this?

Thanks

Pavlos


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