Friday, March 10, 2006

Re: st: qvf command for count data

Hence, follow Statalist practice, and use an example that anyone can duplicate on their own machine. As for the command syntax, the excerpted bit from my reply addressed that question: qvf wants a list of instruments (included and excluded, i.e. every RHS variable except the endogenous one). But I still recommend -ivreg2- for the reasons stated.

On 3/10/06, Hugh Colaco <> wrote: > Sorry - this was a bad example. There was no "identification" issue in > my actual regression. My basic issue is with the syntax of the qvf > command. > -----Original Message----- > . qvf y x1 x2 x3 x4 (x1 x2 x4 z1) > . ivreg2 y x1 x2 x4 (x3=z1), ffirst

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