st: Fwd: Comparing marginal effects of two subsamples

[Jianhong Chen <jianhongchen1985@gmail.com>]

Hi, everyone

I am conducting two-way interaction with negative binomial model. The
reviewers asked us to do marginal effects because of non-linear model.
So, I splitted the sample according to the mean level of the
moderator.

For the sample with high level of moderator, I used "nbreg" command
and "mfx" to get the marginal effects of the independent variable. For
the sample with low level of moderator, I also used the same two
commands.

Then how to conduct the t-test to compare the marginal effects across
the two subsamples in Stata? Any suggestions would be really
appreciated.

Thanks

Best,

Jianhong

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