Over recent decades the world economy has grown enormously, but the benefits have been distributed very unevenly. The bottom ten percent still has essentially no income. At the same time, the top ten percent of the world’s population now owns seventy-five percent of global wealth, while the bottom fifty percent owns just two percent, according to the World Inequality Report 2026. The top ten percent also captures half of total income, while the bottom fifty percent receives only eight percent of total income. The top one percent alone holds forty percent of global wealth. The middle classes from fifty to ninety-five percent income groups have grown only fifty percent at best over 40 years, while the top 0.001 percent has seen their income grow by nearly 250 percent. New wealth continues to be created, but it is being concentrated ever more sharply at the top.
This reflects a system that continues to reward capital more than labour, particularly through an institutional structure in which multinational corporations and asset holders are better positioned to accumulate returns, reduce effective taxation, and operate across jurisdictions, tending naturally to monopoly positions, and chartered to generate maximum profits, excess capital and dividends for their shareholders. At the highest percentiles of wealth and income, taxation often becomes effectively regressive, weakening both social legitimacy and the redistributive capacity of states. The result is a global economy in which wealth accumulation is increasingly detached from broad social benefit and is too often sheltered from fair contribution to the common good.
Recent estimates suggest that tax havens and global tax evasion cost governments about US$492 billion in lost tax revenues each year, more than double the total volume of official development assistance. Of this amount, around US$348 billion is lost through multinational profit shifting and about US$145 billion through offshore wealth the concealment. Lower-income countries bear nearly half of the total loss, around US$200 billion, equivalent to 3.7% of their annual tax revenues from direct tax evasion alone.
Succeeding generations of corporations and capital owners have captured the wealth created from primary production including minerals and fossil fuels, manufacturing, industrial agriculture, various forms of intellectual property, and information technologies and big data. Where states are strong and public institutions redistributive, some of this wealth is socially shared. Where governance is weak, corrupted, or subordinated to private power, corporations and shareholders retain most of the gains while labour and ecosystems absorb the costs.
The imbalance is not only social but also geographical and ecological. Adjusted for prices, average daily income in North America, Europe, and Oceania is about $125, compared with only $10 in sub-Saharan Africa. Annual educational expenditure per child is about $7,400 in Europe and just $220 in sub-Saharan Africa, entrenching generational inequality in life chances and productive capacity. The same concentration appears in responsibility for climate damage: the richest 10 percent of the global population is responsible for 77 percent of production-related carbon emissions, while the bottom 50 percent is responsible for only 3 percent. Wealth and emissions are thus closely correlated, and inequality in one reinforces inequality in the other.
The evidence points not to a natural law of inequality, but to the consequences of rules, institutions, and political choices. A minimum global tax on billionaire and centi-millionaire wealth could mobilize resources equivalent to around one percent of global GDP, enough to finance major reductions in poverty and malnutrition, expand educational opportunity, support technological upgrading in poorer regions, and strengthen climate adaptation. Without such mechanisms, extremes of wealth and poverty will continue to deepen together.
In such a globalized economy beyond national control, only global systems of regulation, redistribution, and taxation, comparable to what was necessary at the national level in the 20th century to control monopolies, can bring the wealth creation of the economy back into balance with environmental imperatives to stay within planetary boundaries, and social imperatives to distribute that wealth equitably for the benefit of all of humanity.
