[Limdep Nlogit List] ZIOP vs OP

[William Greene]

In principle, you should be able to use a Vuong test, the same way
that the program automatically tests for ZIP vs. Poisson. However, you
are almost certain to reject the noninflated model (based on my
experience).  Unfortuantely, there is no simple Neyman-Pearson test
because the OP model is not nested in the ZIOP model.
/Bill Greene

----- Original Message -----
From: "Andreas Drichoutis" <adrihout at aua.gr>
To: limdep at limdep.itls.usyd.edu.au
Sent: Friday, October 24, 2008 2:16:07 PM GMT -05:00 US/Canada Eastern
Subject: [Limdep Nlogit List] ZIOP vs OP

Dear all,
 
how would one test between a Zero inflated ordered probit model and an
ordered probit model in Limdep?
 
Regards,
Andreas Drichoutis
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