Hi,
I have done Poisson ML and NB2 estimation.
Cameron and Trivedi 2010 says that the estimation should be similar (NB2 estimation should be around 15% of Poisson ML).
However, my Poisson ML and NB2 estimation give opposite estimation. One says the main variable of interest increases and the other says decreases.
Would someone be able to tell me what could possibly be going wrong?
Many thanks,
N
Related Posts with Poisson and Negbin - opposite estimation
How does the option"ties" work in psmatch2?Hello: It says in the user's manual : ties not only match nearest neighbor but also other controls w…
Help to get rolling average (standard deviation) over 5 yearsHello, I have a panel data like this (unbalanced) ID Year V1 V2 0 2005 30 19 0 2006 20 67 0 2007 4…
Stata omitting two levels of a variable instead of oneI'm presently working on analyzing a survey with multiple waves. I've used append to attach the diff…
Structural equation modeling: Whether and how to estimate margins w.r.t. a latent variableI’d like to get input from the Stata community on the advisability and potential utility of estimati…
Share of working hours by a segment of race comparing to the total raceHello everyone, I'm working with basic monthly sample of CPS and I'd like to calculate for each occ…
Subscribe to:
Post Comments (Atom)
0 Response to Poisson and Negbin - opposite estimation
Post a Comment