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st: Re: testing across different sub-samples

From   Kit Baum <[email protected]>
To   [email protected]
Subject   st: Re: testing across different sub-samples
Date   Fri, 25 Sep 2009 06:55:16 -0400


That would make the problem much simpler, but it would also impose the constraints that the optimal coefficients on each component of the sum are equal, which is a much stronger statement than that to be tested in the user's setup. The suest approach seems sensible.


On Sep 25, 2009, at 2:33 AM, Nick wrote:

This kind of thing is not my territory at all, but I wondering if
fitting  models in which x1+x2+x3 were summed to be a single predictor
would make this easier.

Kit Baum   |   Boston College Economics & DIW Berlin   |
An Introduction to Stata Programming |
   An Introduction to Modern Econometrics Using Stata  |

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