Fixed effects and wald test

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tifrei
Posts: 2
Joined: Sun Mar 03, 2019 9:23 am

Fixed effects and wald test

Postby tifrei » Thu Mar 07, 2019 2:54 am

Hello,

I have set of data where i perforemd the hausman-test to check if fixed or random effetc should be applied.
With a very low p value of 0.000009 it suggets to take fixed effetcs.

The problem if i tried a fixed effects equation with cross-section set to fix and than want to choose the option GLS weights i get an error : "positive or non-negative argument to function expected in computation of group weight (variance) "

does anybody have an idea whats the error here?

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