st: margins after mlogit interaction term

[Ida Hansen <idahansen79@gmail.com>]

Dear Statalisters



I'm using Stata 12. I'm using margins after mlogit. I have an interaction
term in the model. I have read that the old mfx command gave incorrect
results for interaction effects, while the new margins command gives you no
results. However, I got results for the interaction terms (country*gender)
using margins after mlogit, and I suppose therefore that I have done
something wrong. How can I estimate correct interaction terms in
multinominal logistic regression?

Best Regards,

Ida Hansen



Example for outcome 1:


tabulate country, generate(country)



generate interaction=women*country


xi:mlogit dependent women country1 country2 country3 interaction1
interaction2 interaction3, baseoutcome(0)

margins, dydx(women country1 country2 country3 interaction1 interaction2
interaction3)predict(outcome(1))
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