2sls by hand vs. 2sls EViews
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2sls by hand vs. 2sls EViews
Attached is my replication of the example from Wooldridge textbook. I am puzzled because I get different coefficient estimates (EViews vs. by hand). If anybody has an explanation for this I would be grateful. I am sure it is something trivial but I just dont see it.
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- 2sls_green.prg
- (289 Bytes) Downloaded 271 times
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- 2sls_green.wf1
- (180.5 KiB) Downloaded 251 times
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- Fe ddaethom, fe welon, fe amcangyfrifon
- Posts: 13319
- Joined: Tue Sep 16, 2008 5:38 pm
Re: 2sls by hand vs. 2sls EViews
Make sure you're using the same sample in each estimation. LWAGE has NA values so observations are dropped from the TSLS equation, but is not included in the 1stage regression, so observations are not being dropped.
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Re: 2sls by hand vs. 2sls EViews
I was right that it is trivial:) Thank you.
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