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st: Piecewise model and LR chi2


From   nanss115@sapo.pt
To   statalist@hsphsun2.harvard.edu
Subject   st: Piecewise model and LR chi2
Date   Fri, 16 May 2008 10:03:04 +0100

I'm using a piecewise constant exponential model to study unemployment durations. I've estimated my model and the coefficients seem fine but in my estimation results in not getting the LR chi2 statistic. I'm guessing that this is the reason why my model is not performing well in the linktest but I honestly don't know what can cause stata to not provide the LR chi2 statistic. I've expanded my data and created the dummies for the duration and everything looks alright but obviously is not.
Any help you could give would be great.
Kind regards
Nádia

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