I am trying to use the ivreg2 command with Stata7.0 but it says invalid
syntax.
What I do is:
ivreg2 y x1 x2 x3 x4 (x5 x6 x7 = z1 z2 z3 )
but it doesn't seem to work. I have previoulsy insatlled the package by
doing
ssc install ivreg2
but I guess I am missing something because when I try to run the use
http://fmwww.bc.edu/ec-p/data/hayashi/griliches76.dta,clear it doesn't work
either.
Can anyone help me?
Thank you,
Anais
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