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- Sat Dec 13, 2008 5:05 pm
- Forum: Estimation
- Topic: negative R² with System 2SLS/3SLS
- Replies: 1
- Views: 4415
negative R² with System 2SLS/3SLS
Hi all, when I estimate a system of 4 equations with 2SLS/3SLS and GMM. I get a negative R² for 2 equations and positive R² for the other 2. WHY? If I estimate the model with SUR, they are all positive. Any suggestions whats wrong with my model, or recommendations how to overcome this flaw. Best, se...