Dear Statalists,
I am running translog cost and production frontiers. I am constrained
on how to impose symmetry restrictions on coeffients of interacting
variables (bij=bji)? For interacting XiXj, do you generarate a new
variable or enter them independently into the model like (Xi*Xj)?
However, the later is giving an error (time series operator are not
allowed). Anybody who know how to do this please?
STATA is fun
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
