st: inteff command for interaction terms in logit and probit models

[S.Rasciute@lboro.ac.uk]

Hi, I would like to ask a question regarding the inteff 
command for interaction terms in logit and probit models. 
It is indicated in the paper by Norton, Wang and Ai (2004) 
that the varlist following inteff command must be the same 
as in the fitted logit or probit model and must include at 
least four variables: the dependent variable, independent 
variable 1, independent variable 2 and the interaction 
between independent variables 1 and 2. However, I use 
interaction terms without including variables that are 
interacted separatelly. I cannot use some of those 
variable separatelly because they do not vary among choice 
(individual-specific). Could you please suggest me how I 
could proceed. Thanks a lot. Simona
*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/