st: post-estimation commands for Poisson

[Scott Cunningham <scunning@gmail.com>]

I know how to interpret Poisson estimated coefficients as  
elasticities (or rather, to convert it into elasticities), but I want  
to interpret the marginal effect of a change in the regressor on the  
count variable itself.  But, interpretation of Poisson coefficients  
isn't straightforward.  Is there a post-estimation command, similar  
to the -mfx- commands for creating elasticities, that will generate  
easy to intepret coefficients of the marginal effect of a change in  
the regressors on the count regressand? 
 
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