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st: Missing values error in -xtabond2-


From   "Clive Nicholas" <Clive.Nicholas@newcastle.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   st: Missing values error in -xtabond2-
Date   Wed, 30 Jun 2004 06:10:44 +0100 (BST)

All,

I'm having a slight problem with using David Roodman's -xtabond2-
(downloadable from SSC), thus:

. tsset pano edyear
       panel variable:  pano, 1 to 659
        time variable:  edyear, 1976 to 1992, but with gaps

. xtabond2 edconpc ledconpc ed2-ed13 edpollch lagconch laglabch lagldmch
clmargin cdmargin conplace edenp class if edmarker==1, gmm(l3edconpc)
robust
Missing values in time variable (edyear).
r(459);

I should point out, if necessary, that ED2 to ED13 are all time dummies.
The rest are continuous covariates.

Using -tsfill- after -tsset- made no difference. I thought one could fit
Arellano-Bond models with unbalanced panels? Any help duly appreciated.
Cheers.

CLIVE NICHOLAS        |t: 0(044)191 222 5969
Politics              |e: clive.nicholas@ncl.ac.uk
Newcastle University  |http://www.ncl.ac.uk/geps
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