2012 Canazei Winter Workshop on...
Transcript of 2012 Canazei Winter Workshop on...
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2012 Canazei Winter
Workshop on Inequality
Measuring the Global Distribution of
Wealth
Jim Davies
11 January 2012
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Collaborators
Susanna Sandström, Tony Shorrocks, Ed Wolff
• “The world distribution of household wealth” in J.B. Davies (ed.)
Personal Wealth from a Global Perspective (OUP, 2008)
• “The level and distribution of global household wealth”, Economic
Journal, March 2011
Tony Shorrocks, Rodrigo Lluberas, Michael O’Sullivan, Giles Keating
• Credit Suisse Global Wealth Report 2010, 2011
• Credit Suisse Global Wealth Databook 2010, 2011
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Objective
To measure the world distribution of household wealth across
individuals, countries and regions
• wealth = real assets + financial assets – debts
• wealth level results for years 2000 – 2011
• global distribution pattern for 2000, 2010 and 2011
• compared across countries using official exchange rates
• comparisons for adult population
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Household Wealth - Coverage
• Asset coverage follows UN system of national
accounts; residence basis
• Some assets that are included:
– Equity of personal sector in insurance and
pension funds; trust funds
• Some wealth not included:
– Social security wealth
– Net worth of government, corporations, ROW
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Goldsmith, Raymond W. (1985): Comparative National
Balance Sheets, A Study of Twenty Countries, 1688-1978,
University of Chicago Press.
Milanovic, Branko (2005): Worlds Apart: Measuring
International and Global Inequality, Princeton University Press.
World Bank (2011): The Changing Wealth of Nations.
Some Related Literature
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Structure of talk
• Evidence on wealth levels and composition
• Estimating levels for countries without direct data
• Evidence on wealth distribution
• Estimating distributions for countries without wealth distribution data
• Adjusting top tail to match information in ”rich lists”
• World distribution of wealth
• Long-term trends in wealth-holding
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Some details regarding methods
(1) adult population
(2) average wealth level: based on
• household balance sheets and wealth survey data (covering 49
countries, 63% of world population, 93% of world wealth)
• extended by regression methods to most other countries
• region-income class averages imputed to remaining countries
(3) distribution of wealth: based on
• distribution data for 22 countries
• wealth dist estimated from income distribution for most other
countries
• region-income class averages imputed to remaining countries
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Estimating Wealth Levels
• Household Balance Sheet Data - - 45 countries
– Our preferred source
– Est’d by national statistical organizations, central
banks, ministries of finance, using multiple sources
– Counterparty data for most financial assets
– Surveys, perpetual inventories for non-financial
– Part of UN system of national accounts
– Financial assets collated by OECD, Eurostat
– Non-financial assets: obtain directly from official
country sources
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Estimating wealth levels (cont’d.)
• Household Survey Data - - 4 countries
– Financial assets under-estimated
– Value of housing relatively accurate
– Liabilities somewhat under-estimated
– Used here when HBS data unavailable
- correction to Financial Assets based on
regression results
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• Wealth dominated by Real Assets in low income countries
• Financial Assets more important in high income countries
• ”Financial Interrelations Ratio” rises with development (Goldsmith,
1985).
– Ratio = Financial Assets/Non-Financial Assets
– Averages about 0.5 in LDCs
– Approx 1.0 in Developed Countries
• Large differences in wealth composition for countries at similar
income
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Asset composition, 2011
-40 -20 0 20 40 60 80 100
India
Indonesia
France
Czech Republic
China
Singapore
Denmark
Switzerland
Japan
United States
South Africa
Non-financial assets Financial assets Debts
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Composition of financial assets, 2011
0 20 40 60 80 100
United States
Sweden
Canada
Italy
France
Germany
Singapore
United Kingdom
Japan
Colombia
Currency and deposits Equities Other financial assets
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China, Taiwan
Czech Republic
Israel
New Zealand
ItalyUnited Kingdom
Singapore
Japan
France
CanadaUnited States of America
Netherlands
Australia
Denmark
Switzerland
0
10
00
00
20
00
00
30
00
00
40
00
00
Ne
t w
ort
h p
er
cap
ita
0 50000 100000 150000GDP per capita
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Log Financial Assets Per Capita regression
(SUR) with year and region dummies, 2000-
2008
Variable Coefficient Standard
Error
Log Consumption per capita 1.2157 .0861
GDP per capita growth rate -0.0122 .0031
Log Market Capitalization
Rate 0.1168 .0357
% Urban Population .0088 .0023
Survey Dummy -2.6763 .3581
“R2” = .9369
329 Observations
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Log Liabilities Per Capita regression
(SUR) with year and region dummies,
2000-2008
Variable Coefficient Standard
Error
Log Consumption per capita 1.3313 .0774
Log Domestic Credit per
capita 0.8158 .0485
% Urban Population .0068 .0020
“R2” = .9572
329 Observations
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Log Non-Financial Assets Per Capita
regression with year and region
dummies, 2000-2008
Variable Coefficient Standard Error
Log Consumption per capita 1.0656 .1333
Life Expectancy 4.5459 2.1360
Log Population Density -0.0661 .0194
% Urban Population .0068 .0020
R2 = .9105
132 Observations
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Estimating & imputing wealth levels 2000 –
2011 for all countries
• Complete HBS data: 17 countries
• Financial HBS Data: 28 countries
– Non-financial assets imputed from regression
• Survey Data: 4 (includes China & India)
– Financial assets corrected using survey
dummy
• Entirely imputed from regressions: 152
• Mean of region/income group: 50
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Estimating wealth levels for interrupted HBS
& Survey series
• Complete annual data 2000-2011(2nd Q) rare....
US and a few other countries
• Regression-based estimates for missing years
• 2009 – 2011: imputations based on separate
regressions done on key variables
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Aggregate Global Wealth, 2000 - 2011
0
50
100
150
200
250
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
Africa
India
Latin America
China
Asia-Pacific
Europe
North America
trillion USD
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Sources of changes in wealth
levels 2000-2011
• real growth and private saving
• asset price changes (e.g. shares, housing)
• exchange rate movements (especially $ - euro)
• population shifts and ageing
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Wealth shares by region 2011 (%)
Europe 34
North America 28
Asia-Pacific 22
China 9
Latin America 4
India 2
Africa 1
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Geographical spread of wealth
• wealth is heavily concentrated in North America, Europe,
and high income Asia-Pacific countries
- collectively have 80% of world wealth
• North America has 6% of the world adult population, 28%
of household wealth
• Europe and high income Asia-Pacific countries also have
disproportionate amounts of wealth
• For Africa, China, India, and lower income Asian countries,
share of wealth is considerably less than population share,
sometimes by a factor of more than 10
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Global trends in wealth per adult, 2000-
2011
0
10000
20000
30000
40000
50000
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
net worth net worth at constant exchange rates
financial wealth non-financial wealth
debt
USD per adult
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World Wealth Levels, 2011
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Wealth levels across Countries
Global household wealth using official exchange rates
2000 $ 30,672
2010 $ 47,720
2011 $ 51,078
Average wealth per adult end 2010 mid 2011
Switzerland $ 420,000 $ 540,000
USA $ 247,000 $ 248,000
Japan $ 215,000 $ 249,000
China $ 18,000 $ 21,000
Indonesia $ 11,000 $12,000
India $ 5,100 $ 5,500
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GDP per cap
upper lim $)
Example countries Wealth/GDP Financial/Non-
Financial Assets
593 Congo, Afghanistan 1.34 .902
1,031 Bangladesh, Zimbabwe 2.44 .639
1,824 India, Ghana 2.06 .198
3,391 Philipines, Bolivia 1.92 .416
5,245 China, Ecuador 2.82 .906
7,914 S. Africa, Jamaica 1.66 .747
12,423 Brazil, Mexico, Turkey 1.72 .599
22,353 Chile, Poland, Portugal 1.69 .970
46,970 France, Germany, Italy 4.39 .920
120,060 Luxbg, Sweden, U.S. 3.68 1.61
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Differences in wealth and financial
development
• Bottom 80% of countries by GDP:
– Wealth/GDP: 1.95
– Financial/Non-Financial Assets: 0.67
• Emerging market countries generally still
have relatively low financial interrelations
ratio
• Top 20% of countries:
– Wealth/GDP: 4.04
– Financial/Non-Financial Assets: 1.27
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Wealth distribution data
Country Year Unit
Share of top
25% 20% 10% 5% 2% 1% 0.50% 0.10%
Australia 2006 household 61.2
Canada 2005 family 69 50.4 35.8 15.5
Chile 2007 household 65.5 44
China 2002 person 59.3 41.4
Denmark 1996 family 98.7 76.4 56 28.8 22.3 11.7
France 2010 adult 62 24
Germany 2003 household 67.4 46.7
India 2002-3 household 69.9 52.9 38.3 15.7
Indonesia 1997 household 78.9 65.4 56 28.7
Italy 2008 household 59.4 42.3 29.6 12.2
Japan 1999 household 57.7 39.3
Korea, 1988 household 60.1 43.1 31 14
Netherlands 2008 household 78.5 62.7
New Zealand 2001 tax unit 67 48
Norway 2004 household 80.1 65.3
Spain 2005 household 64.2 41.6
Sweden 2007 adult 72 55 29
Switzerland 1997 family 71.3 58 34.8 27.6 16
Thailand 2006 household 69.5
UK 2005 household 62.8 44.3 30.5 12.5
USA 2007 family 83.4 71.5 60.4 33.8
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Strategy for global wealth distribution
• published wealth (and income) dist data for 22 countries
• impute missing quantile shares using “ungrouping” program
• compare wealth to income shares
• estimate wealth dist from income dist data for 141 countries
• generate synthetic wealth samples for each country
• 1 observation per 10,000 adults bottom 90%
• 1 observation per 1,000 adults top 10%
• 1 observation per 100 adults top 1%
• scale up wealth values to match average wealth
• adjust top tail to match number of billionaires by country in Forbes
list, rescale to match average wealth, repeat process until
convergence
• process world wealth sample 1.27 million weighted observations
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Pareto Top Tail
1
10
100
1.000
10.000
100.000
1.000.000
100000 1000000 10000000 100000000 1E+09
Thousands of adults above wealth level (logarithmic scale)
Weallth level (USD, Logarithmic scale)
Unadjusted wealth estimates Fitted Pareto
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Unadjusted and adjusted wealth values for China
100
1.000
10.000
100.000
1.000.000
10.000.000
100.000.000
10.000 100.000 1.000.000 10.000.000 100.000.000 1.000.000.000
Weallth level (USD, Logarithmic scale)
unadjusted data adjusted data
Number of adults above wealth level
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Wealth inequality is very high
• share of the top 10% around
• 60% in China, 71% in US, higher in some other countries
• even higher for world as a whole
• richest 2% of adults own more than half global wealth
• global wealth Gini for adults is 0.893
• most global inequality is between country inequality
• wealth more unequally distributed than income across countries
• high income countries have bigger share of wealth than GDP
• reverse is true of middle- and low-income nations
• some exceptions in Nordic and Eastern Europe transition
countries
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Global wealth distribution, adults
Decile Share (%) Decile Share (%)
1 -0.2 8 3.2
2 0.1 9 8.7
3 0.2 10 84.3
4 0.4 Top 5% 71.6
5 0.6 Top 1% 44.2
6 1.0 Gini 0.893
7 1.7 Mean $51,078
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The global wealth pyramid
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The global rich 2011 (official exchange rates)
• $ 4,200 per adult to be in top half of world wealth ranking
• $ 82,000 to be in richest 10% of adults
• $ 712,000 to be in richest 1% of adults (group with 45 million
members worldwide)
• richest 1% of adults owned 44% of global assets
• richest 5% owned 72%
• richest 10% owned 84%
• bottom half owned under 2%
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Regional Composition of Global Wealth
Distribution, 2000
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Asia-Pacific
India
China
Africa
Europe
Latin America
North America
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1 2 3 4 5 6 7 8 9 10
Decile
Regional Composition of Global Wealth
Distribution, 2011
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Owners of wealth above USD 100,000 by
country
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Dollar millionaires by country of residence
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Where do the richest 1% live?
• Richest 1% more concentrated geographically than top decile
• US even more dominant (but share has been falling)
• 28% reside in the US, 12% in Japan
• China and India membership was almost insignificant in year 2000,
now China accounts for 3.5%
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Apex of the Pyramid
USD 1 to 5 million
USD 5 to 10 million
USD 10 to 100 million
> USD 100 million 29,000
987,300
wealth
range
1,959,600
26,724,200
number of
adults
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Rich and Super Rich Individuals by Region
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Super Rich ( > $50m) 2011: selected countries
0 5000 10000 15000 20000 25000 30000 35000 40000
Egypt Saudi Arabia
Malaysia Singapore Indonesia
Mexico Israel
Netherlands Korea
Hong Kong Turkey Spain
Sweden Taiwan
Brazil Russia
India Australia
Italy Canada
United Kingdom France Japan
Germany Switzerland
China United States of America
USD 50m - 100m
USD 100m - 500m
USD 500m - 1bn
> USD 1bn
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Long-term trends in wealth-holding
• Wealth-disposable income ratios for
France, UK, US since early 1900s
• OECD wealth-disposable income ratios for
G7 countries since 1960
• Major wealth components for G7 countries
since 1960
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Wealth-income ratios for France, UK and
USA since 1900
0
1
2
3
4
5
6
7
8
9
10
1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010
France
UK
USA
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Household wealth-income ratio in G7
countries
Canada
France Germany Italy
Japan
UK
USA
0
1
2
3
4
5
6
7
8
9
10
1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010
Canada France Germany Italy Japan UK USA
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Gross financial assets - income ratio
Canada
France Germany
Italy
Japan
UK
USA
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
5,5
6,0
1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010
Canada France Germany Italy Japan UK USA
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Household debt-income ratio in G7
countries
Canada France
Germany
Italy
Japan
UK
USA
0,0
0,5
1,0
1,5
2,0
1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010
Canada France Germany Italy Japan UK USA
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Household net financial wealth - income
ratio
Canada
France
Germany
Italy
Japan
UK
USA
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010
Canada France Germany Italy Japan UK USA
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Real assets-income ratio in G7 countries
Canada
France
Germany Italy
Japan
UK
USA
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
5,5
6,0
6,5
7,0
1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010
Canada France Germany Italy Japan UK USA
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Wealth per adult USA
USD 0
USD 50.000
USD 100.000
USD 150.000
USD 200.000
USD 250.000
USD 300.000
2000 2002 2004 2006 2008 2010
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Wealth per adult Japan
USD 0
USD 50.000
USD 100.000
USD 150.000
USD 200.000
USD 250.000
USD 300.000
2000 2002 2004 2006 2008 2010
Wealth per adult Wealth per adult at constant exchange rate
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Wealth per adult China
USD 0
USD 5.000
USD 10.000
USD 15.000
USD 20.000
USD 25.000
2000 2002 2004 2006 2008 2010
Wealth per adult Wealth per adult at constant exchange rate
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Wealth per adult Switzerland
USD 0
USD 100.000
USD 200.000
USD 300.000
USD 400.000
USD 500.000
USD 600.000
2000 2002 2004 2006 2008 2010
Wealth per adult Wealth per adult at constant exchange rate
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Wealth per adult Australia
USD 0
USD 50.000
USD 100.000
USD 150.000
USD 200.000
USD 250.000
USD 300.000
USD 350.000
USD 400.000
USD 450.000
2000 2002 2004 2006 2008 2010
Wealth per adult Wealth per adult at constant exchange rate
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Wealth per adult Indonesia
USD 0
USD 2.000
USD 4.000
USD 6.000
USD 8.000
USD 10.000
USD 12.000
USD 14.000
2000 2002 2004 2006 2008 2010
Wealth per adult Wealth per adult at constant exchange rate
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Conclusions: Regions
• Wealth geographically concentrated
– North America, Europe, Rich Asia-Pacific
• China: wealth rising rapidly, population moving into
higher global deciles
• India: wealth rising but highly polarized, move into
higher global deciles weaker than China’s
• Latin America: microcosm of world as a whole?
• Africa: low wealth/income in many countries
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Conclusions: wealth structure and
inequality
• Financial/Non-Financial Assets Ratio
– 0.67 for bottom 80% of countries
– 1.27 for top 20%
– Still relatively low in emerging market countries
• World wealth highly unequal
– Shares of top 1, 5, 10%: 44.2. 71.6, 84.3%
– Gini coefficient = 0.893
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Conclusions: Long-run trends
• Wealth/disposable income ratio:
– US: in range (4,5) for most of last 100 years, brief departures
– France, UK: now ≈ 8, up from 3 in 1950 (FR), 4 in 1980 (UK)
– Upward trend across G7 since 1985, large fluctuations except
in Canada, Germany
• Financial Assets/Income: ↑ 1980-2000, little trend
since 2000
• Debt/Income: ↑ 1980-2007, except ↓ since 2000 in
Japan Germany