Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: DiD


From   [email protected]
To   [email protected]
Subject   Re: st: DiD
Date   Tue, 29 Mar 2011 10:55:22 +0200

Dear Inggrid,
I think I'd need to know what you are exactly doing in order to answer properly (the command, with the explanations of what the variables stand for), so I can give you just an idea. 
My guess is that, if you're using DID, you're interested in the difference before/later a given threeshold for 2 different groups. If you use year dummies, such difference is "absorbed" by them. I mean: you're interested in the difference across years, so you shouldn't treat it as a confounding factor.
Federico
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index