Displaying 2 results from an estimated 2 matches for "gazetni".
Did you mean:
gazetny
2006 Jul 13
1
sem question
Dear all,
I am trying to estimate simultaneous equation model concerning growth in russian regions.
I run the analysis by means of FIML in R sem package.
I am not familiar with SEM yet, but I've just got several suitable estimated specifications.
Nevertheless, sometimes R gives the following warning message:
Warning message:
Negative parameter variances.
Model is probably underidentified.
2006 Jul 17
1
sem: negative parameter variances
Dear Spencer and Prof. Fox,
Thank you for your replies. I'll very appreciate, if you have any ideas concerning the problem described below.
First, I'd like to describe the model in brief.
In general I consider a model with three equations.
First one is for annual GRP growth - in general it looks like:
1) GRP growth per capita = G(investment, migration, initial GRP per