Dear Joao
yes, I can show.
. predict fit, xb
. gen fit2=fit^2
. ppml value lgdpx lgdpi lgdppx lgdppi ldis landli landlx fit2, cluster( ldis)
. test fit2=0
( 1) fit2 = 0
chi2( 1) = 9.31
Prob > chi2 = 0.0023
Milad
yes, I can show.
. predict fit, xb
. gen fit2=fit^2
. ppml value lgdpx lgdpi lgdppx lgdppi ldis landli landlx fit2, cluster( ldis)
. test fit2=0
( 1) fit2 = 0
chi2( 1) = 9.31
Prob > chi2 = 0.0023
Milad
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