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Kifle Wondemu <email@example.com>
Tue, 20 Dec 2011 17:18:40 +0000
I am estimating GMM-xtabond. I wanted to include regional dummies (AP
LAC SSA MENA) and the model is fitted as follows:
xtabond2 gdp l(0/2).(lopen lpop linfl lgrants lM2 linv ldfct lttlexp
ltxrev) diffvars(AP LAC SSA), lags(2) noconstant
But I keep on getting error message "factor variables not allowed"
can someone please help?
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