Arellano bond GMM

[sakshi2085]

hi,
I am running a dyanamic panel data estimation .but the estimation output does not give me the value for the constant.IT says constant added to instrument list.
What is the reason for that.

Thanks
Sakshi

[EViews Glenn]

The constant is eliminated from the model when we do the GMM first-differencing or othogonal deviations. But we always add constants to the model to correspond with any included dummy variables.

[sakshi2085]

thanks for the reply.but how do i add it because constant automatically gets added to the instrument list

[EViews Glenn]

Add C as a level variable using @LEV as described in the manual.

[sakshi2085]

I have done that but still c gets added to the instrument list and i get no value of coefficient and p value of c