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?
For econometric discussions not necessarily related to EViews.
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