global income inequalities (based on worlds apart , princeton up, 2005)
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Global income inequalities (based on Worlds Apart , Princeton UP, 2005). Branko Milanovic Council on Foreign Relations New York, December 13, 2005. Email: [email protected]. Two types of inequalities. Inequality between countries = international inequality - PowerPoint PPT PresentationTRANSCRIPT
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Global income inequalities(based on Worlds Apart, Princeton UP,
2005)
Branko Milanovic
Council on Foreign Relations
New York, December 13, 2005
Email: [email protected]
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Two types of inequalities
Inequality between countries = international inequality
Inequality between citizens of the world = global inequality
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Two types of inequality illustrated
International inequality
Global inequalty
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Inequalities, 1950-2000:
0.4
0.5
0.6
0.7
Year
Gin
i Ind
ex
World unweighted
Global Inequality
International inequality
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Why so few data points for global inequality?
• For international inequality, you need only GDI per capita. The data easily go back to 1950-1960, and even further (1820).
• For global inequality, you need in addition distributions within countries (to assess everybody’s income). For China, USSR, most of Africa, household surveys are not available before mid-1980s.
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What people agree and disagree
• International inequality increased substantially after 1978-80
• Global inequality is extremely high
• It is even higher (huge!) if we use actual dollars rather than PPP dollars
• Is there a trend in recent global inequality or not
AGREE DISAGREE
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Some history first
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Inequality in history, 1820-2000
0
10
20
30
40
50
60
70
1820 1870 1890 1900 1913 1929 1938 1952 1960 1978 2000
Global
International
Based on Maddison, Bourguignon and Morrisson, and Milanovic
Driven by the big bang of the Industrial revolution (and increase in the number of independent countries in 1960)
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Composition of global inequality changed: from being mostly due to “class” (within-national), today it is mostly due to “location” (where people live; between-national)
0
10
20
30
40
50
60
70
80
90
1870 2000
C lass
Location
Location
Class
1870
2000
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A literary illustration of reduced within-national inequalities: Elizabeth’s dilemma
Income in 1820 (£ pa)
Approx. position in 1820 income distribution
Mr. Darcy
10,000 Top 1%
Elizabeth’s family
3000/7~430 Top 10%
Elizabeth alone
50 Bottom 10%
Gain 100 to 1
Income in 2000 (£ pc pa)
130,000
37,000
2,600
50 to 1
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050
0010
000
1500
020
000
bbb
1800 1850 1900 1950 2000year
And increased differences between nations…
(average country income in each region)
West
Asia
Africa
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Today: countries
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Parts of Africa where 2000 GDI per capita is less than in 1963 (180m people )
Poorer than during J.F. Kennedy
US GDI per capita in the meantime doubled
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Four Worlds 2003
Borderlines in 2003: second world starts at $PPP 10,000; third at $PPP 5,000.
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The key borders today
• First to fourth world: Greece vs. Macedonia and Albania; Spain vs. Morocco (25km)
• First to third world: US vs. Mexico;
Germany vs. Poland; Austria vs. Hungary
In 1960, the only key borders were Argentina and Uruguay (first) vs. Brazil, Paraguay and Bolivia (third world), and Australia (first) vs. Indonesia (fourth)
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Approximate % of foreign workers in labor force
Ratio in per capita GDIs (in PPP terms)
Greece (Albanians)
7.5 4 to 1
Spain (Moroccans)
12.0 4.5 to 1
United States (Mexicans)
10.0 4.3 to 1
Austria (former Yugoslavs)
10.0 2.7 to 1
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Today: people
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Cumulative % of world population
Cumulative % of world income/consumption
In PPP terms In $
5 0.2 0.08
10 0.7 0.22
25 2.9 0.9
50 9.6 3.1
75 24.7 9.2
90 50.4 32.9
Top 10 49.6 67.1
Top 5 32.7 45.3
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The bottom line
• In PPP terms, the top 5 percent of world
population controls one-third of world income. They make in 2 days what the poorest 5 percent make in a year.
• In dollar terms, the top 5 percent of world
population controls almost one-half of world income. They make in 15 hours what the poorest 5 percent make in a year.
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02
04
06
08
01
00
10
0 q
ua
ntil
es
of
inc
0 5 10 15 20group
USA
Germany
Brazil
Indon-R
Russia
Position of different groups in global income distribution (year 2002)
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Population according to income of country where they live (2000)0
10
20
30
40
Perc
ent
0 10000 20000 30000gdp per capita in ppp
China
India, Nigeria
WEur, Japan USA
Brazil, Russia
Mexico
Emptiness in the middle: only 230m people live in countries with GDI per capita between $PPP 10,000 and 20,000
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Future evolution of global inequality
• Equalizing force: China’s and India’s fast growth. They are poor and populous (although at some point their growth may become disequalizing if Africa continues to stagnate)
• Disequalizing force: Increased national inequality (particularly R/U gap) in China, India, elsewhere in Asia etc.
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Does global inequality matter?
• NO, according to Ann Krueger (2002):
“Poor people are desperate enough to improve their material conditions in absolute terms rather than to march up the income distribution. Hence it seems far better to focus on impoverishment than on inequality.”
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• YES, according to Kuznets (1954)“…reduction of physical misery associated with low
income and consumption levels…permit[s] an increase…of political tensions”
BECAUSE
“the political misery of the poor, the tension created by the observation of the much greater wealth of other communities…may have only increased.”
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What may be the effects of global inequality?
• Globalization increases awareness of differences in living standards (aspiration level changes; empirical studies show it)
• Leads to migration
• May lead to conflict (Jennifer Government)
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We need some rules for global transfers
• They should flow from a rich to a poor country. That is easy.
• But they have to satisfy the same rules as at the national level, i.e.
• transfers should be globally progressive, that is flow from a richer person to a poorer person.
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In addition transfers have national income inequality implications
Progressive transfer at the global level and worsening national distributions (may not
be politically sustainable)
T B
Income
Income distribution in poor country
Income distribution in rich country
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Idea of global transfers
• Transfers are no longer from state to state, or from inter-state organization to a state, but from global authority to citizens (change in paradigm)
• A natural complement to global tax authority is relationship with (poor) citizens, not (poor) states
And in cash…
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The new AgencyTax on commodities consumed by the rich people in rich
countries
Money collected by the Agency
Aid in cash given to different poor categories of people in poor countries
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Several key points: GCB
• Symmetrical treatment of poor and rich countries (limited sovereignty for both: rich lose some tax-raising authority; poor govt cannot decide the use of funds)
• No loans, but grants (pure transfers)
• No projects, but cash to citizens
• No fine targeting, but broad categories
• Use NGOs and citizen groups