st: xt simultaneous model for panel data

[Yutaka HAMAOKA <hamaoka@fbc.keio.ac.jp>]

Dear Stata-listers:

 I need to estimate simultaneous equation model for panel data.(two linear 
regression models with correlated error is enough). I searched help and 
statalist archive, but could not locate any information.
 How can I estimate such a model on Stata?
 I appreciate any information.
 Thanks in advance.

Yutaka
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