Dear all,
I want to estimate this equation with repeated data.
log(y)=b0+b1*log(x1)+b2*log(x1)+B'Z+u
if y<=0 then log(y) is undefined. It seem to be a tobit model with panel
data, can I do this in R with nlme, lme or plm ?
If not is it valid to use a two step procedure ?
Justin BEM
BP 1917 Yaoundé
Tél (237) 76043774
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