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st: RE: HHI
From
Nick Cox <[email protected]>
To
"'[email protected]'" <[email protected]>
Subject
st: RE: HHI
Date
Mon, 20 Jun 2011 16:43:15 +0100
By Hirshman I presume you mean Hirschman: see
http://en.wikipedia.org/wiki/Albert_O._Hirschman
-ineq- from SSC can do this.
Even if it couldn't, this is at most two calls to -egen-, to get totals and then to get totals of proportions squared, i.e. (value / total)^2, with appropriate use of -by:-.
Nick
[email protected]
Salima Bouayad Agha
does anybody has any solution to compute an HHI (Hirshman-Herfindahl
Index) on panel data.
We had observation on a regional desagregated level (i) for 3
sectors(k), many years(t) and many countries (j) and we wanted to
compute this index at the contry level for each year.
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