Panel data

[napster]

Hi Guys,

I used unbalance panel data for study, so i can't use Huaseman test for choose fixed or randome effect model. Have you any way to fix this problem?

Thanks

Napster

[eva]

Hello,

I have the same problem. I try to reason which is most logical to use (I have countries as crossections so fixed effects) but I estimate both to see if it would lead to a different conclusion and test for robustness.

Good luck,

[cecilcarmo]

Are you sure you can´t use the Haussman test in unbalanced panels?
I think you can´t use the Haussman test if the panel has gap´s. So you should introduce NA when some year or individual has not information for some variable.
Please anyone correct me if I'm wrong.

[EViews Glenn]

The Hausman test for fixed vs. random effects should be perfectly fine in unbalanced panels. Gaps are no problems as well.