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Re: st: decomposition concentration index


From   ecreceb@unex.es
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: decomposition concentration index
Date   Sat, 5 Jun 2010 10:49:47 +0200 (CEST)

I want to decompose a concentration index proposed by Wagstaff et al
(2003) in order to obtain the effect of independent variables on health
inequality. I enclose you the mathematical expresions in the attach :


Thank you



> On Thu, Jun 3, 2010 at 12:00 PM,  <ecreceb@unex.es> wrote:
>> Dear sir/madam:
>>
>> I am trying to decomposing the Wagstaff concentration index in stata(11)
>> to
>> analyze the effect of different variables over consume in Primary Health
>> Care. I have tried the procedure explained in Analyzing Health Equity
>> Using Household Survey Data (World Bank Institute), but I have not luck.
>
> Concentration index is a descriptive measure. To study effects of
> anything on it, you need to have some counterfactuals, probably a
> regression model of some kind. Can you show what exactly you have
> done? And please give full references to everything (isn't that in
> FAQ?). Saying "I applied Wagstaff procedure" makes about as much sense
> as saying "I used Bill Gould's code" (yeah, sure; a good quarter of
> Stata is probably written using Bill Gould's code; what exactly did
> you use?)
>
> --
> Stas Kolenikov, also found at http://stas.kolenikov.name
> Small print: I use this email account for mailing lists only.
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