Investor Presentaiton
IIFET 2012 Tanzania Proceedings
Table IX: Computation of Gini Coefficient for Artisanal Fish Marketing in the Study Area
Quintile
Proportion
Cumulative Proportion
Income
of Income
of Income
of Quintile
0
0
0
0
20
1752962.744
0.01
0.01
0.2
40
5258888.234
0.03
0.04
0.4
60
12270739.21
0.07
0.11
0.6
80
24541478.42
0.14
0.25
0.8
100
131472205.4
0.75
1.00
1.0
Total 175296274.4
From Oparinde and Ojo (2011)
Area between the line of perfect equality and the Lorenz Curve (A) = 0.5-0.182 = 0.318
Total area under the line of equality (A+B) = 0.5
A
Gini-coefficient G =
(A+B)
Gini coefficient
0.318
0.50
0.636 = 0.64
Cummulative % of Income
1.2
0.8
0.6
0.4
0.2
1
0
0
0.2
0.4
0.6
0.8
1
1.2
Cummulative % of Household
Fig 4: Lorenz curve for the artisanal fish marketers
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