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st: New SSC module: -hutchens- segregation index


From   "Stephen P. Jenkins" <stephenj@essex.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   st: New SSC module: -hutchens- segregation index
Date   Wed, 25 Jan 2006 14:54:02 +0000

Thanks to Kit Baum, a new module, -hutchens-, for calculating the Hutchens
segregation index, is now available from SSC

TITLE
      'HUTCHENS': module to calculate the Hutchens `square root' segregation
index with optional decompositions by subgroup

DESCRIPTION/AUTHOR(S)

      hutchens computes the `square root' segregation index proposed by
      Hutchens  (International Economic Review, 2004) from
      individual-level data. Hutchens shows  that this index, call it
      S, satisfies seven desirable properties for a good  numerical
      measure of segregation. In particular, S is additively
      decomposable by population subgroup: total segregation may be
      expressed as the sum of within-group segregation (a weighted sum
      of S across subgroups) plus between-group segregation. S lies on
      the unit interval, with zero representing the complete absence of
      segregation, and one representing complete segregation. If two
      distributions are unambiguously ordered according to a pair of
      (non-intersecting) segregation curves, then S will also order the
      distributions in the same way.

      KW: segregation
      KW: square root index
      KW: Hutchens
      KW: inequality

      Requires: Stata version 8.2

      Distribution-Date: 20060125

      Author: Stephen P. Jenkins, University of Essex
      Support: email stephenj@essex.ac.uk


----------------------------------------------------------------------------------------------------
(type -ssc install hutchens- to install)

--
Professor Stephen P. Jenkins <stephenj@essex.ac.uk>
Institute for Social and Economic Research (ISER)
University of Essex, Colchester, CO4 3SQ, UK
Tel: +44 (0)1206 873374. Fax: +44 (0)1206 873151.
http://www.iser.essex.ac.uk
Survival Analysis using Stata:
http://www.iser.essex.ac.uk/teaching/degree/stephenj/ec968/

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