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Re: st: Heavy representation in a sample


From   Nick Cox <[email protected]>
To   [email protected]
Subject   Re: st: Heavy representation in a sample
Date   Sun, 20 Mar 2011 19:59:35 +0000

This does not answer answerable except after defining the population
and characterising the sampling process. You don't seem to do either
here.

By the way, I don't see anything intrinisically "econometric" in this
example. If you have a problem, it is a general statistical problem.

Nick

2011/3/20 Claude Francoeur <[email protected]>:

> I would like to know if there is any econometric problem when making an OLS
> regression using a sample that is heavily represented by a subset within a
> variable? For instance, we are using country legal systems as an explanatory
> variable : 65% is Anglo-Saxon and the rest is divided between French, German
> and Scandinavian. Is there any econometric problem using such a sample? If
> so, what are the methods to correct it?
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