peyzf 发表于 2010-4-8 23:30 
能否细讲?
或提供相应的资料。
以及在软件操作上如何实现?
When error terms are correlated across equations, the SUR can improve the efficiency by incorporated information of error structure.
For details see the link below,
http://en.wikipedia.org/wiki/Seemingly_unrelated_regression