At 08:48 AM 1/11/2006, Klugert, Ingmar wrote:
For estimating a certain model I use the procedure oprobit.
Interpreting the results I struggle with the following problem:
I have four country dummies in my model, the p-values say one of
them is somewhat difference to the reference group whereas the
others are not. Taking the cuts given in the output, it now becomes
quite difficult to use the coefficients estimated. Two of the three
countries that have not a different influence on the endgenous
relative to the reference group are lying between cut2 and cut3. The
other one lies, like the country shown as being not similar to the
reference group, below cut2.
Now my question: How is it possible that three countries that are
assumed to be of identical influence on the endogenous by the
estimation results lie in two different groups of cut points.?
For any hints given I am very grateful
Ingmar Klugert
It might help to show your results. However, a coefficient can be
statistically insignificant and yet still be large in magnitude; or
in this case, large enough to move the group into a different cut-point range.
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