Bookmark and Share

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

[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 <>
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 L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen


*   For searches and help try:

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