In testing my Poisson regression (using the Eviews guide: http://www.eviews.com/help/helpintro.ht ... %23ww38558) I can see overdispersion, so am switching to a negative binomial distribution.
I am comfortable with estimating marginal effects for my Poisson model using the basic formula exp(c(1)+c(2)x)*c(2). However, I understand the negative binomial distribution is a poisson/gamma mix and I am not clear and can't find any guidance on how to approach estimating expected values or marginal effects with this distribution.
Grateful for any advice!!!
Thanks in advance.
For technical questions regarding estimation of single equations, systems, VARs, Factor analysis and State Space Models in EViews. General econometric questions and advice should go in the Econometric Discussions forum.
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