Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


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

Re: st: Testing interaction terms / mutually exclusive variables


From   Phil Schumm <pschumm@uchicago.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Testing interaction terms / mutually exclusive variables
Date   Thu, 20 Jun 2013 12:11:45 -0500

On Jun 20, 2013, at 12:01 PM, Verena Dill <dill@uni-trier.de> wrote:
> I want to test whether or not the coeffients are the same (_b[var1]=_b[bar2]) and take into account that they are mutually exclusive.


There is still a lack of clarity in what you want here, but I'm guessing that you want (immediately following your regression) is

    test service = manufacturing = 0

where service and manufacturing are your two dummy variables distinguishing service sector firms and manufacturing sector firms from all others.  This will test the null hypothesis that the average outcome is equivalent for all three types of firms.


-- Phil


*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index