I need to estimate an instrumental variables regression. I have got two repressors, but I need the instrument only for one. How can I do it using the Stata?
When I use ivreg command, for example,
ivreg demand oil (demand_1=demand_2 oil_1)
I need the instrument only for demand_1, not for oil. But the Stata interprets oil as an instrument for demand_1 too.
Best regards
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