Hello,
My apology in advance if this is a na�ve question, but I am new to count models.
Are there techniques for detecting/evaluating influential cases in the negative
binomial regression model (and its zero-inflated counterpart)? If so, is there
anything implemented in Stata? For least squares, I use Cook�s distance and
DFBeta, but after a quick survey of the literature I unable to find comparable
methods for count models. In addition, can anybody recommend an approachable
econometrics text that addresses influential cases for count models?
Thank you,
Matthew
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