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Re: st: DiD
From
Steven Samuels <[email protected]>
To
[email protected]
Subject
Re: st: DiD
Date
Tue, 29 Mar 2011 20:09:12 -0400
I apologize. Apparently you do have untreated families; but in your example (real?) data some have no pre-treatment observations.
Steve
Ingrid:
You cannot do a DID design without a control group. The "DID" means "Difference in Differences". So one would compare after-before in the treated and in the control. In your data set you have only the difference in the treatment group.
Steve
[email protected]
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