Programming the statistical procedures from SAS

How do I interpret treatment effects with ordinal endogenous variable?

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How do I interpret treatment effects with ordinal endogenous variable?

[ Edited ]

Hi, 

 

I am running a 2SLS estimation with a continuous dependent variable and an ordinal treatment variable taken values 1,2 or 3, which I assume is endogenous. I use a binary instrument and standard LATE assumptions should hold. 


My questions are how I interpret coefficients on the treatment variable fro proc syslin and whether it is possible to compute treatment effects for a specific value (say treat=1).
I use SAS EG 7.1 and have used the following code:

 

Proc syslin data=sample 2SLS;
endogenous treatment;
instruments Z X;
first_stage: model treatment=Z X;
second_stage: model Y = treatment+X;
run; quit;

Thanks!

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