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World population, 1900-2000: poor share of total increased from 66% to 80% rich population doubled; poor almost fivefold Iraq 5.2 23.6 Afghanistan.

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Presentation on theme: "World population, 1900-2000: poor share of total increased from 66% to 80% rich population doubled; poor almost fivefold Iraq 5.2 23.6 Afghanistan."— Presentation transcript:

1 World population, : poor share of total increased from 66% to 80% rich population doubled; poor almost fivefold Iraq Afghanistan 5.0 (1900) 27.8 (2000)

2 Demographic transitions compared, rich vs
Demographic transitions compared, rich vs. poor countries: annual growth rates,

3 Relation between TFR and e0 25 less developed countries, 1950-55: great diversity
Iraq, tfr= 7.2; e0=43 Afghanistan tfr=6.7; e0=31

4 Relation between TFR and e0 25 LARGE less developed, 1995-2000: transition well advanced
Afghanistan tfr=6.0; e0=45 Iraq, tfr= 5.4; e0=58

5 Strong inverse correlation between sewage system and 0-4 mortality in 55 poor countries, 1980s

6 Per capita GDP and e0 in 25 less developed countries, : big increases at moderate levels of GDP

7 DDT eradication halved the crude death rate in malarial zones of Sri Lanka, 1930-1960

8 Burden of premature death and disease by world region, 1998: inequalities are large and larger yet between continents

9 Contraception was major factor in reducing fertility from natural levels, 31 countries

10 Per capita GDP and TFR, 25 less developed countries, 1995-2000—weak correlation

11 Literacy and TFR, 25 less developed countries, 1980s—strong correlation
Afghanistan tfr=6.0; illit=70% Iraq, tfr= 5.4; illit: 30%

12 Fertility of married Mexican women by educational levels compared with natural fertility, 1990

13 The educational revolution will precipitate further declines in Mexican fertility rates (1990)
None Primary Secondary Post

14 Decline in TFR by level of development and family planning, 1982-90: both required
Test of unmet need thesis

15 “Wanted” TFR vs. actual TFR, by region, late 1980s-early 1990s

16 “Unwanted” children (%) vs
“Unwanted” children (%) vs. actual TFR, by region, late 1980s-early 1990s No correlation

17 % current contraceptors is strongly correlated with actual TFR, in all regions (late 1980s-early 1990s)

18 % current contraceptors and “wanted” fertility: also strongly correlated, in all regions (late 1980s-early 1990s)

19 Availability of contraception is not enough: % current contraceptors is not strongly correlated with unwanted children, in all regions (late 1980s-early 1990s)

20 China, age structure: 1950 & 2025 the effects of fertility decline

21 India, age structure: 1950 & 2025 the effects of partial fertility decline

22 Increase in population and per capita GNP: 27 less developed countries, 1970-92

23 Increase in population 1950-70 & GNP pc: 27 less developed countries, 1970-92

24 Increase in population and per capita GNP: 27 less developed countries, 1950-92

25 Asia: the boom in labor force growth is over: much GREATER than for coming 30 years, except for Muslim countries

26 Increase in labor force, 1995-2025/1965-1995: Sub-Saharan Africa
Sub-Saharan Africa, the boom is underway: much GREATER IN COMING 30 years than for

27 Gross investment and working age population selected countries

28 Malawi: rapid fertility decline (from 7. 6 in 1980 to 4
Malawi: rapid fertility decline (from 7.6 in 1980 to 4.0) reduces schooling costs 50% by 2015—over modest fertility decline (tfr=5.5) 2005, tfr= 6.5


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