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st: DiD
From
inggrid <[email protected]>
To
[email protected]
Subject
st: DiD
Date
Tue, 29 Mar 2011 14:08:47 +0800 (SGT)
Dear all,
I am using a difference-in-differences estimator. Unfortunately, STATA dropped the year dummy due to collinearity reason. Does anyone know how to solve this problem?
Any help is greatly appreciated.
Best regards,
Inggrid
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