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st: problems with stata
I usually work with Stata 7.0, and I would like to ask you a question.
After estimating a panel data model with fixed effects and with
instrumental variables (command xtivreg, fe) I´ve have problems in order
to use Sargan test. Specifically, after running this test, the program
shows me the following message:
overidxt requires version 1.1.4 or later of xtivreg
type -update query- and follow the instructions to update your Stata
I´ve receive this message even after updating the program on line with
Please, could you tell me how I could solve this problem?
Thank you very much in advance
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