How the world's wealth is distributed - the top two percent own half

A new study on The World Distribution of Household Wealth by the Helsinki-based World Institute for Development Economics Research of the United Nations University was launched earlier this week. The study shows the richest 2% of adults in the world own more than half of global household wealth. The most comprehensive study of personal wealth ever undertaken also reports that the richest 1% of adults alone owned 40% of global assets in the year 2000, and that the richest 10% of adults accounted for 85% of the world total. In contrast, the bottom half of the world adult population owned barely 1% of global wealth. The research finds that assets of US$2,200 per adult placed a household in the top half of the world wealth distribution in the year 2000. To be among the richest 10% of adults in the world required US$61,000 in assets, and more than US$500,000 was needed to belong to the richest 1%, a group which — with 37 million members worldwide — is far from an exclusive club.

The UNU-WIDER study is the first of its kind to cover all countries in the world and all major components of household wealth, including financial assets and debts, land, buildings and other tangible property.

‘One should be clear about what is meant by “wealth”,’ say co-authors James Davies of the University of Western Ontario, Anthony Shorrocks and Susanna Sandstrom of UNU-WIDER, and Edward Wolff of New York University. ‘In everyday conversation the term “wealth” often signifies little more than “money income”. On other occasions economists use “wealth” to refer to the value of all household resources, including human capabilities.’

‘We use the term in its long-established sense of net worth: the value of physical and financial assets less debts. In this respect, wealth represents the ownership of capital. Although capital is only one part of personal resources, it is widely believed to have a disproportionate impact on household wellbeing and economic success, and more broadly on economic development and growth.’

Wealth levels across countries

Using currency exchange rates, global household wealth amounted to US$125 trillion in the year 2000, equivalent to roughly three times the value of total global production (GDP) or to US$20,500 per person. Adjusting for differences in the cost-of-living across nations raises the value of wealth to US$26,000 per capita when measured in terms of purchasing power parity dollars (PPP$).

The world map shows per capita wealth of different countries. (Figure 1: World Wealth Levels in Year 2000) Average wealth amounted to $144,000 per person in the USA in year 2000, and $181,000 in Japan. Lower down among countries with wealth data are India, with per capita assets of $1,100, and Indonesia with $1,400 per capita.

Per capita wealth levels vary widely across countries. Even within the group of high-income OECD nations the range includes $37,000 for New Zealand and $70,000 for Denmark and $127,000 for the UK.

Wealth is heavily concentrated in North America, Europe, and high income Asia-Pacific countries. People in these countries collectively hold almost 90% of total world wealth. (Figure 2: Regional Wealth Shares) Although North America has only 6% of the world adult population, it accounts for 34% of household wealth. Europe and high income Asia-Pacific countries also own disproportionate amounts of wealth. In contrast, the overall share of wealth owned by people in Africa, China, India, and other lower income countries in Asia is considerably less than their population share, sometimes by a factor of more than ten. (Figure 3: Population and Wealth Shares by Region)

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