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joseph stiglitz
500+ Experts Worldwide Call for Global Panel to Address ‘Inequality Emergency’
"Clear and proven steps can be taken to reduce it and build more equal societies and economies," wrote economists and other experts, "which are the fundamental foundation stone of a successful future for us all."
Nov 14, 2025
Emphasizing that economic inequality is "a policy choice," more than 500 economists and other experts on the global wealth gap are endorsing a call made earlier this month in the first-ever G20 report on inequality: The "inequality emergency" must be confronted by new international body inspired by the United Nations' panel on climate change.
The creation of an International Panel on Inequality (IPI) was a central recommendation of the landmark report set to be presented next week at the G20 Leaders Summit in Johannesburg, and renowned economists including 2024 Nobel economics laureate Daron Acemoglum, Thomas Piketty, Isabella Weber, Ha-Joon Chang, and Jason Hickel were among those who signed a letter Thursday urging the creation of the committee.
The inclusion of economists, climate scientists, epidemiologists, historians, and experts from a range of other disciplines "reflects a key fact," said the signatories. "High levels of economic inequality have a negative impact on every aspect of human life and progress, including our economies, our democracies, and the very survival of the planet."
"Just as the Intergovernmental Panel on Climate Change (IPCC) has played a vital role in providing neutral, science-based, and objective assessments of climate change, a new International Panel on Inequality would do the same for the inequality emergency," reads the letter, which was also signed by global economic leaders including former US Treasury Secretary and Federal Reserve Chair Janet Yellen and former World Bank top economists and leaders.
Since its inception nearly four decades ago, the IPCC has provided governments with the most up-to-date scientific information about planetary heating and its impacts. Its assessments have informed the creation of the United Nations Framework Convention on Climate Change; the 1997 Kyoto Protocol, which subjected wealthy countries to emissions targets for the first time; and the 2015 Paris Agreement, which has required countries to develop and implement plans to draw down planet-heating emissions.
An IPI, said the experts on Thursday, "would provide policymakers the best, most objective assessments on the scale of inequality, its causes and consequences, and consider potential solutions."
"We believe this is in the interests of policymakers from across the political spectrum, who see the importance of this issue and the need to base responses to it on data and evidence and sound analysis," reads the letter. "We know that scholars and experts across the world would readily contribute their time voluntarily—as thousands do for the IPCC—in support of such a necessary and vital international initiative. We are ready to assist in this process."
The letter followed the release of the G20 Extraordinary Committee of Independent Experts on Inequality's landmark report, which was presented to South African President Cyril Ramaphosa earlier this month ahead of the G20 Leaders Summit.
The Extraordinary Committee, which is led by Nobel Prize-winning economist Joseph Stiglitz and also includes inequality experts such as Winnie Byanyima of Uganda and Jayati Ghosh of India, warned that in the last quarter-century, the wealthiest 1% of people around the globe have captured more than 40% of all new wealth—$1.3 million on average—while the bottom 50% has seen its wealth grow by just 1%, or about $585, in constant US dollars.
One in four people around the globe—roughly 2.3 billion people—face moderate or severe food insecurity, meaning they regularly skip meals. The report found that the problem is getting significantly worse, with the number of food-insecure people rising by 335 million since 2019.
The report found that 80% of all countries—accounting for roughly 90% of the global population—have high levels of income inequality, making them seven times more likely than more equal countries to experience democratic decline.
“We are at a dangerous moment in human history," said Piketty, co-director of the World Inequality Lab and World Inequality Database. "Rampant inequality is dividing nations and communities, threatening our social fabric, human rights, and the very essence of democracy. A global effort to tackle inequality is needed—and rigorous analysis of its causes, drivers, and solutions is the first step."
"Governments need to live up to the G20 Summit’s promise of ‘solidarity, equality, sustainability’ and urgently establish an International Panel on Inequality," he added.
Countries with low levels of inequality included Norway, Sweden, Denmark, and Finland—places that also consistently rank high on global reports on happiness and that were found to have low levels of "health, social, and environmental problems," according to the report.
The countries with low levels of inequality have "generous universal transfers and social insurance, supplemented by targeted assistance," the report says.
“High inequality is the result of decades of a failed economics that has primarily benefited the richest in our societies," said Chang, research professor at the School of Oriental and African Studies at University of London. "Not only is there a lot of evidence showing that higher inequality produces more negative economic and social outcomes, there are quite a few examples of more egalitarian societies growing much faster than comparable but more unequal societies.”
The signatories of the letter emphasized that inequality "is not inevitable."
"Clear and proven steps can be taken to reduce it and build more equal societies and economies," they wrote, "which are the fundamental foundation stone of a successful future for us all."
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$70 Trillion in Inherited Wealth Shows Global 'Inequality Emergency' Spiraling Out of Control
"Inequality is a crisis in need of concerted action," said Nobel Prize-winning economist Joseph Stiglitz.
Nov 04, 2025
A panel of experts convened by South Africa's president warned Tuesday that the world is facing an "inequality emergency" as the richest people on the planet capture a disproportionate share of new wealth and prepare to pass it down to their heirs—perpetuating the chasm between economic elites and everyone else.
The panel, led by Nobel Prize-winning economist Joseph Stiglitz, notes in a new report that over $70 trillion in wealth will be passed down to heirs over the next decade. In the next 30 years, the panel estimates, 1,000 billionaires will transfer more than $5.2 trillion to their heirs mostly untaxed.
"Inequality is one of the most urgent concerns in the world today, generating many other problems in economies, societies, polities and the environment," states the report, published ahead of the G20 meetings in Johannesburg at the end of the month.
Joining Stiglitz on the panel, formally called the Extraordinary Committee of Independent Experts on Global Inequality, were Adriana Abdenur of Brazil, Winnie Byanyima of Uganda, Jayati Ghosh of India, and Imraan Valodia and Wanga Zembe-Mkabile of South Africa.
"Inequality is not a given; combating it is necessary and possible," the experts wrote. "Inequality results from policy choices that reflect ethical attitudes and morals, as well as economic trade-offs. It is not just a matter of concern for individual countries, but a global concern that should be on the international agenda—and therefore the G20's."
Since 2000, the global 1% has captured more than 40% of all new wealth while the bottom half of humanity saw its wealth grow by just 1%, according to the new report. More than 80% of countries—accounting for roughly 90% of the global population—have high levels of income inequality, which undermines social cohesion, economic functioning, and democratic institutions nationally and worldwide.
The panel recommends a broad scope of policy changes to tackle runaway income and wealth inequality, from ensuring the fair taxation of multinational corporations and ultra-rich individuals, to antitrust policies that reduce corporate concentration, to major investments in public services.
The experts also called for the creation of an International Panel on Inequality—inspired by the Intergovernmental Panel on Climate Change (IPCC)—"to support governments and multilateral agencies with authoritative assessments and analyses of inequality" that would "empower policymaking."
"The committee's work showed us that inequality is a crisis in need of concerted action," Stiglitz said Tuesday. "The necessary step to taking this action is for policymakers, political leaders, the private sector, journalists and academia to have accurate and timely information and analysis of the inequality crisis. This is why our recommendation above all is for a new International Panel on Inequality."
"It would learn from the remarkable job the IPCC has done for climate change, bringing together technical expertise worldwide to track inequality and assess what is driving it," he added.
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2% Wealth Tax on Just 3,000 Billionaires Could Raise $250 Billion a Year: Nobel Economists
"Not only is it necessary to impose a stronger burden of justice on billionaires, but more importantly, it is possible."
Jul 07, 2025
Seven Nobel laureates on Monday published an op-ed advocating for "a minimum tax for the ultrarich, expressed as a percentage of their wealth," in the French newspaper Le Monde.
"They have never been so wealthy and yet contribute very little to the public coffers: From Bernard Arnault to Elon Musk, billionaires have significantly lower tax rates than the average taxpayer," wrote Daron Acemoglu, George Akerlof, Abhijit Banerjee, Esther Duflo, Simon Johnson, Paul Krugman, and Joseph Stiglitz.
Citing pioneering research from the E.U. Tax Observatory, the renowned economists noted that "ultrawealthy individuals pay around 0% to 0.6% of their wealth in income tax. In a country like the United States, their effective tax rate is around 0.6%, while in a country like France, it is closer to 0.1%."
Although the "ultrawealthy can easily structure their wealth to avoid income tax, which is supposed to be the cornerstone of tax justice," the strategies for doing so differ by region, the experts detailed. Europeans often use family holding companies that are banned in the United States, "which explains why the wealthy are more heavily taxed there than in Europe—though some have still managed to find workarounds."
The good news is that "there is no inevitability here. Not only is it necessary to impose a stronger burden of justice on billionaires, but more importantly, it is possible," argued the economists, who say that taxing the overall wealth of the ultrarich, not just income, is the key.
The wealth tax approach, they wrote, "is effective because it targets all forms of tax optimization, whatever their nature. It is targeted, as it applies only to the wealthiest taxpayers, and only to those among them who engage in tax avoidance."
💡 "One of the most promising avenues is to introduce a minimum tax for the ultra-rich, expressed as a percentage of their wealth."Seven Nobel laureates in economics advocate for the Zucman tax in their latest op-ed.Read the full @lemonde.fr article 👇www.lemonde.fr/idees/articl...
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— EU Tax Observatory (@taxobservatory.bsky.social) July 7, 2025 at 8:05 AM
The anticipated impact would be significant. As the op-ed highlights: "Globally, a 2% minimum tax on billionaire wealth would generate about $250 billion in tax revenue—from just 3,000 individuals. In Europe, around $50 billion could be raised. And by extending this minimum rate to individuals with wealth over $100 million, these sums would increase significantly."
That's according to a June 2024 report that French economist and E.U. Tax Observatory director Gabriel Zucman prepared for the Group of 20's Brazilian presidency—which was followed by G20 leaders' November commitment to taxing the rich and last month's related proposal from the governments of Brazil, South Africa, and Spain.
"The international movement is underway," the economists declared Monday, also pointing to recent developments on the "Zucman tax" in France. The French National Assembly voted in favor of a 2% minimum tax on wealth exceeding €100 million, or $117 million, in February—but the Senate rejected the measure last month.
The economists urged the European country to keep working at it, writing that "at a time of ballooning public deficits and exploding extreme wealth, the French government must seize the initiative approved by the National Assembly. There is no reason to wait for an international agreement to be finalized—on the contrary, France should lead by example, as it has done in the past," when it was the first country to introduce a value-added tax (VAT).
"As for the risk of tax exile, the bill passed by the National Assembly provides that taxpayers would remain subject to the minimum tax for five years after leaving the country," they wrote. "The government could go further and propose extending this period to 10 years, which would likely reduce the risk of expatriation even more."
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