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The fixed effects negative binomial model revisited

Paulo Guimaraes ()

Economics Letters, 2008, vol. 99, issue 1, 63-66

Abstract: In this paper I show that the conditional fixed effects negative binomial model for count panel data does not control for individual fixed effects unless a very specific set of assumptions are met. I also propose a score test to verify whether these assumptions are met.

Date: 2008
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Handle: RePEc:eee:ecolet:v:99:y:2008:i:1:p:63-66