st: Number of Instruments in xtivreg

From	"ALICE DOBSON" <[email protected]>
To	[email protected]
Subject	st: Number of Instruments in xtivreg
Date	Thu, 08 Sep 2005 16:16:28 -0400

Dear statalisters,
I am using xtivreg and I have one endogenous variable for which I have an instrument. However, I am interested in examining the interaction effects of this endogenous variable with various other exogenous variables. Do I need to have additional instruments?

Best,
Alice

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