Dear all:
I have a problem with generating the marginal effects
for a simple probit model.
I am looking at the effect of a range of factors upon
the probability of being poor. The independent
variables include a categorical variable denoting
educational level, as well as an area poverty variable
(continous).
I have calculated the mfx of area poverty upon the
predicted probability of individual poverty.
Now I would like to find out how this varies for
different education levels other than the mean.
I am using the following code:
gen AreaPov=_n+0 in 1/40
gen p_pov=.
forvalues i=0(1)40{
mfx, at (mean edgroup=1 Areapov = `i') var (Areapov)
replace p_pov=e(Xmfx_y) if Areapov==`i'
}
I have five educational groups - and upon calculating
the marginal effects using this code, I realized that
exactly the same results were generated for each
educational grouping.
There must be some problem with the code, but I can't
figure out what it is.
I'd be grateful for any advice.
Many thanks in advance.
best regards,
Emma
____________________________________________________________________________________
Be a PS3 game guru.
Get your game face on with the latest PS3 news and previews at Yahoo! Games.
http://videogames.yahoo.com/platform?platform=120121
*
* 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/
