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: FW: Marginal effects for the two-part model
From
Maarten buis <[email protected]>
To
[email protected]
Subject
RE: st: FW: Marginal effects for the two-part model
Date
Thu, 3 Feb 2011 08:54:08 +0000 (GMT)
--- On Thu, 3/2/11, Michael Palmer wrote:
> There seems to be some confusion on the computation of
> marginal effects for the TPM I described as some authors
> still suggest combined marginal effects.
That depends on what the outcome of interest is. If you
want the unconditional outcome, for example people get
0 cost when they don't seek medical help and some positive
cost when they do, then you need to include both parts of
your model. However, as I understood your original question,
you wanted the cost conditional on seeking medical help.
Hope this helps,
Maarten
--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany
http://www.maartenbuis.nl
--------------------------
*
* 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/