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Daily Income
Millions of Persons
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
15
10
25
=
45
Number of persons under poverty line
Total Population
250
Daily Income
Millions of Persons
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
15
10
25
=
Number of persons under poverty line
Total Population
𝟏𝟓 + 𝟏𝟎 + 𝟐𝟓 + 𝟒𝟓
=
= 𝟎. 𝟑𝟖
𝟐𝟓𝟎
0.38 × 100 = 𝟑𝟖
45
250
Daily Income
Millions of Persons
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
15
10
Average Income =
25
Total Income
Total Population
45
250
Daily Income
Millions of Persons
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
15
10
Average Income =
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= 15 + 10 + 25 + 45 = 95
25
Total Income
Total Population
45
250
Daily Income
Millions of Persons
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
15
10
25
45
Total Income=Average Income × Total Population
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250
Daily Income
Millions of Persons
Avg Income (cents)
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
15
12.5 =
𝟎 + 𝟐𝟓
𝟐
10
25
45
37.5
62.5
87.5
250
Daily Income
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
Millions of Persons
15
10
25
45
Avg Income (cents)
Total Income
(millions cents)
12.5
37.5
62.5
87.5
156.25
393.75
18.75 =
15 × 12.5
37.5
2
250
Daily Income
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
Millions of Persons
15
10
25
45
Avg Income (cents)
Total Income
(millions cents)
12.5
37.5
62.5
87.5
187.5
375
1562.5
3937.5
Total Income
Average Income =
Total Population
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= 15 + 10 + 25 + 45 = 𝟗𝟓
= 187.5 + 375 + 1562.5 + 3937.5 = 𝟔𝟎𝟔𝟐. 𝟓
250
Daily Income
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
Millions of Persons
15
10
25
45
Avg Income (cents)
Total Income
(millions cents)
12.5
37.5
62.5
87.5
187.5
375
1562.5
3937.5
𝟔𝟎𝟔𝟐. 𝟓
Average Income =
= 𝟔𝟒 cents
𝟗𝟓
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= 15 + 10 + 25 + 45 = 𝟗𝟓
= 187.5 + 375 + 1562.5 + 3937.5 = 𝟔𝟎𝟔𝟐. 𝟓
250
Daily Income
Millions of Persons
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
15
10
25
45
250
Poverty Line − Average Income for Persons under Poverty Line
APG = Poverty Headcount Ratio ×
Poverty Line
Daily Income
Millions of Persons
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
15
10
25
45
250
Poverty Line − Average Income for Persons under Poverty Line
APG = Poverty Headcount Ratio ×
Poverty Line
Daily Income
Millions of Persons
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
15
10
25
100 − 64
APG = 0.38 ×
= 0.14
100
45
250
Daily Income
Millions of Persons
Between 0 and Between 25 cents Between 50 cents Between 75 cents Total Population
25 cents
and 50 cents
and 75 cents
and 1 dollar
of Country
15
10
25
100 − 64
APG = 0.38 ×
= 0.14
100
0.14 × 100 = 𝟏𝟒
45
250
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World, Including China
World, Excluding China
Figure 2.9
Evolution of World Gini
Coefficient (1970-2000)
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Source: tylervigen.com
Source: Gizmodo.com