>st: Calculation of Gini Coeffiecent
>From Katrin Auspurg <[email protected]>
>To "[email protected]" <[email protected]>
>Subject st: Calculation of Gini Coeffiecent
>Date Fri, 15 Dec 2006 11:31:49 +0100
>
>I am estimating the Gini Coefficient using the ado inequal.
>Unfortunately, I can`t find any information if this entails an
>adjustion for small numbers of cases (to the range from 0 to 1, the so
>called "Lorenz- M�nzner-Coefficient").
The Gini coefficient returned by -inequal- is not the adjusted version that you mention.
Note that you probably want to use more up-to-date versions of the package which corrects some problems in -inequal-, namely -inequal7- available on the SSC archive:
ssc install inequal7
(In particular, tied values pose problem with -inequal-)
Alternatively you can also consider -ineqdeco-.
All these packages return the "unadjusted" index. You'd need to compute the adjusted value by hand, e.g.
sysuse auto
inequal7 price
di `r(gini)'*(_N/(_N-1))
Hope this helps
Philippe
<<<<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>>>>
Philippe Van Kerm
IRISS - Integrated Research Infrastructure in the
Socio-Economic Sciences
CEPS/INSTEAD
BP48, L-4501 Differdange, Luxembourg
<<<<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>>>>
Research: http://econpapers.repec.org/RAS/pva19.htm
IRISS: http://www.ceps.lu/iriss
CEPS/INSTEAD: http://www.ceps.lu
<<<<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>><<<>>>>>
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