Thanks for you comment,
this method does not work, I just added exp(c(.)) instead of c(.), but eviews gave me singularity error "near singular matrix" error, any thought?
Regards,
Reza
Search found 2 matches
- Wed Jun 01, 2011 8:06 pm
- Forum: Estimation
- Topic: Putting limits on estimated coefficient values
- Replies: 41
- Views: 84016
- Wed Jun 01, 2011 2:51 am
- Forum: Estimation
- Topic: Putting limits on estimated coefficient values
- Replies: 41
- Views: 84016
Re: Putting limits on estimated coefficient values
Hi everyone, I’m going to estimate a system of LES demand equations by applying Seemingly Unrelated Regression (SURE) method. For this purpose, one of the coefficients must be positive. To explain clearly, this is my demand function: Pi*Xi = Pi*μi + αi(m-∑Pj*μj) In which, μ>0 and ∑αi =1 must be impo...