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Re: st: svyreg vs. reg

From   David Kantor <>
Subject   Re: st: svyreg vs. reg
Date   Fri, 14 May 2004 17:28:22 -0400

I don't know the details, but svyreg does more complex calculations to account for certain features of survey data. So I would expect the results to differ. (Though, I'm not so sure if that holds when you don't specify strata or psu.)

-- David

At 02:36 PM 5/14/2004 -0400, Paul von Hippel wrote:

In analyzing weighted survey data, I'm surprised that the following commands
        svyset [pweight=weight]
        svyreg y x
don't give the same results as
        reg y x [pw=weight]
        reg y x [pw=weight], hc3
or even
        reg y x [aw=weight]

I'm left confused as to what svyreg is doing. Any insights most appreciated.

David Kantor
Institute for Policy Studies
Johns Hopkins University

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