Wednesday, March 08, 2006

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

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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