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st: Calculating p20/p80 indicator with weights
From
Anke Weber <[email protected]>
To
[email protected]
Subject
st: Calculating p20/p80 indicator with weights
Date
Mon, 18 Jun 2012 15:35:10 +0200
Dear all,
I am using Stata 11, and trying to take into account pweights when
constructing the p20/p80
inequality measure, i.e. the
ratio
of
the average income of the richest 20
percent of the population divided by the average income of the bottom
20
percent (using data from the SOEP, USS, and EUSILC databases).
Would
anyone have a suggestion on how to account for the sampling weight (of
the person) in the data?
So far, I explored the ineqdeco command, which let's you use aweights
but unfortunately there is only an p75/p25 or p90/p10 measure. Then, I
tried to use the svy command to calculate separately the 20-percentile
and the 80 percentile, using my equivalised income variable
(equivincome) but this did not work either:
svyset pidp [pweight=a_psnenus_xw]
pweight: a_psnenus_xw
VCE: linearized
Single unit: missing
Strata 1: <one>
SU 1: pidp
FPC 1: <zero>
svy: egen p20= pctile(equivincome), p(20)
egen is not supported by svy with vce(linearized); see help svy
estimation for a list of
Stata estimation commands that are supported by svy
I would be very happy if some one has an idea of how to calculate the
p20/p80 indicator with weights!
Many thanks in advance,
Anke
--
**********************************
Anke Weber
European Commission - Joint Research Centre
Econometrics and Applied Statistics Unit
Institute for the Protection and Security of the Citizen
Via E. Fermi 2749, TP 361
Ispra (VA), I-21027, Italy
Phone: +39 0332 78 5821
Fax: +39 0332 78 5733
email: [email protected]