Amparo Castelló-Climent, Universidad Carlos III de Madrid ... - Ivie

6 Appendix
I- Computation of the human capital Gini coefficient
The human capital Gini coefficient is computed using data on the average
schooling years and the attainment levels provided by Barro and Lee (2001).
The formula to compute the Gini coefficient is:
G h = 1
2H
S
h=1 l=1
S
|x h − x l | n h n l (A- 1)
where H is the average schooling years in the total population, x h is cumulative
average schooling years of each educational level, and n h is the share of
population aged 15 and over with the level h as the the highest educational attainment
level. Expanding expression (A- 1), the Gini coefficient can be written
as follows:
G h = n 0 + n 1x 2 (n 2 + n 3 )+n 3 x 3 (n 1 + n 2 )
n 1 x 1 + n 2 x 2 + n 3 x 3
(A- 2)
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