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

For all developing regions of the world, the share of population exceeds the share of global wealth, which in turn exceeds the share of members of the wealthiest groups. (Figure 3: Population and Wealth Shares by Region)

A small number of countries account for most of the wealthiest 10% in the world. One quarter are Americans and another 20% are Japanese. (Figure 5: Percentage Membership of Wealthiest 10%)

These two countries feature even more strongly among the richest 1% of individuals in the world, with 37% residing in the USA and 27% in Japan. (Figure 6: Percentage Membership of Wealthiest 1%)

According to Anthony Shorrocks, a country’s representation in the rich person’s club depends on three factors: the size of the population, average wealth, and wealth inequality.

‘The USA and Japan stand out’, he says, ‘because they have large populations and high average wealth. Although Switzerland and Luxembourg have high average wealth, their populations are small. China on the other hand fails to feature strongly among the super-rich because average wealth is modest and wealth is evenly spread by international standards. However, China is already likely to have more wealthy residents than our data reveals for the year 2000, and membership of the super-rich seems set to rise fast in the next decade.’

Composition of household wealth

The UNU-WIDER study shows major international differences in the composition of assets, resulting from different influences on household behaviour such as market structure, regulation, and cultural preferences.

Real property, particularly land and farm assets, are more important in less developed countries. (Figure 7: Asset Composition in Selected Countries) This reflects not only the greater importance of agriculture, but also immature financial institutions.

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