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Panel data not balancing for some reason?

Posted: Mon Jan 16, 2012 2:32 pm
by stats321
My panel isn't balancing and I don't know why! I've followed the instructions in the handbook- but then it just reverts back to the default setting and won't let me estimate with two-way random effects or mixed effects.

Also, on a side note which doesn't really need to be answered- when I imported my data from excel, it just copied the first observations in for all the cross sections and I had to manually ammend them. Am i doing something wrong?

As you can tell, this is the first time I am using Eviews!
log3.wf1
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Re: Panel data not balancing for some reason?

Posted: Mon Jan 16, 2012 2:51 pm
by EViews Gareth
I don't follow. That workfile is balanced.

Re: Panel data not balancing for some reason?

Posted: Mon Jan 16, 2012 2:59 pm
by stats321
This is what I thought, but then when I loaded it into a new workfile, I selected the balanced panel option yet afterwards when I had imported my data (and tried inserting it manually too) it keeps telling me it is unbalanced.

I then proceeded to 'balance' it per the corrections and it still told me it was unbalanced

Re: Panel data not balancing for some reason?

Posted: Mon Jan 16, 2012 3:08 pm
by EViews Gareth
You have 20 years and 57 cross-sections. You have 1140 observations. 20x57 = 1140. It is balanced.

Re: Panel data not balancing for some reason?

Posted: Mon Jan 16, 2012 3:12 pm
by stats321
See attached for my print screens. It doesn't allow me to do so with the number of observations in the background- but I promise i haven't done anything strange!

Re: Panel data not balancing for some reason?

Posted: Mon Jan 16, 2012 3:17 pm
by EViews Gareth
The actual data may be unbalanced due to NAs. You can't have non-symmetric NAs

Re: Panel data not balancing for some reason?

Posted: Mon Jan 16, 2012 3:21 pm
by stats321
Sorry do you mean that if I have an NA for one country in one year but I do have an observation for another country in the same year, it is unbalanced?

Re: Panel data not balancing for some reason?

Posted: Mon Jan 16, 2012 3:37 pm
by EViews Gareth
Yes, that's what unbalanced means.

Re: Panel data not balancing for some reason?

Posted: Mon Jan 16, 2012 3:42 pm
by stats321
Do you have any reccomendation of how I can balance this- as I assume the inserting observations option won't be relevant here?

Or to balance it, do I need to delete the other observations if I don't have them for the full data set? I have quite a few missing pieces of data so this may not be the best option.

Thank you so much.