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Re: st: RE: how to choose between geographical identifiers??

From   "Clive Nicholas" <>
Subject   Re: st: RE: how to choose between geographical identifiers??
Date   Thu, 9 Mar 2006 04:57:51 -0000 (GMT)

Ada Ma wrote:

>> > I have a bunch of wage observations and all the observations are
>> > attached with two geographical identifiers - local authority districts
>> > (LADs) and travel to work areas (TTWAs).  I want to find out how wages
>> > vary across different areas in UK.
>> >
>> > Now I can run wage estimations using either one of the two categorical
>> > variables as explanatory variable.  I would however like to find out
>> > which categorical variable fits the data better.  How do I compare the
>> > two sets of results given that the explanatory variables are quite
>> > different?

If you follow Austin Nichols' advice on doing the preliminary analysis,
and you find differences in wage variances at different spatial levels,
why not try the multilevel approach via -gllamm- and fit wage models at
both of your spatial-identifying levels simultaneously? Just a thought.

CLIVE NICHOLAS        |t: 0(044)7903 397793
Politics              |e:
Newcastle University  |

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