# On the existence of the maximum likelihood estimates in Poisson regression

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### Cites background from "On the existence of the maximum lik..."

...33See also Santos Silva and Tenreyro (2010) for a related discussion on Poisson regressions, and Mullahy (1997), Windmeijer and Santos Silva (1997), and Santos Silva and Tenreyro (2006) for related estimation approaches....

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##### References

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### "On the existence of the maximum lik..." refers background in this paper

...…is not only the most widely used model for count data (see Winkelmann, 2008; Cameron and Trivedi, 1998), but it is also becoming increasingly popular to estimate multiplicative models for other kinds of data (see, among others, Manning and Mullahy, 2001, and Santos Silva and Tenreyro, 2006)....

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...2 See Winkelmann (2008) and Cameron and Trivedi background on the Poisson regression model and its pr...

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...2 See Winkelmann (2008) and Cameron and Trivedi background on the Poisson regression model and its pr 0165-1765/$ – see front matter © 2010 Elsevier B.V....

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### "On the existence of the maximum lik..." refers methods in this paper

...This situation is analogous to what happens in binary choice models when there is complete separation or quasi-complete separation, as described by Albert and Anderson (1984) and Santner and Duffy (1986). Moreover, it is clear that it can also occur in any other regression model where the conditional mean is specified in such a way that its image does not include all the points in the support of the dependent variable....

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...This situation is analogous to what happens in binary choice models when there is complete separation or quasi-complete separation, as described by Albert and Anderson (1984) and Santner and Duffy (1986)....

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