• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Financesouth america

Some of the world’s top economists have weighed in on Argentina and Brazil’s plan for a common currency: ‘This is insane’

Tristan Bove
By
Tristan Bove
Tristan Bove
Down Arrow Button Icon
January 24, 2023, 1:37 PM ET
Brazil and Argentina's presidents walking towards each other for a handshake
Economists are not impressed with Brazil and Argentina's common currency idea. LUIS ROBAYO/AFP via Getty Images

The second-largest currency bloc in the world began taking shape in South America this week, and the world’s foremost economic minds are baffled.

Brazil’s and Argentina’s presidents confirmed their plan to create a common currency provisionally called the “sur” in a joint op-ed published in Argentinean newspaper Perfil last Saturday. Brazil’s newly inaugurated President Luiz Inácio Lula da Silva arrived in Buenos Aires Monday for a summit with his Argentinean counterpart President Alberto Fernández, where the two will discuss strengthening trade ties as well as plan the new currency bloc, which other Latin American countries are being invited to join.

“We decided to advance discussions on a common South American currency that can be used for both financial and commercial flows,” the two leaders wrote in their op-ed, adding that a common currency would shield both countries against external forces and vulnerabilities. On Monday, Brazil President Lula told reporters the common currency would help reduce the region’s reliance on the U.S. dollar by facilitating trade.

The project will likely take time to implement, Argentina economy minister Sergio Massa told the Financial Times Saturday, comparing its rollout to the 35 years it took European countries to introduce the euro, the world’s largest currency bloc. But based on their early reactions, many high-profile economists are doubting whether a Latin American currency will ever actually come to fruition, while some argue the idea is misguided from the start.

“I’m surprised by idea of a common currency for Brazil & Argentina,” former U.S. Treasury Secretary Larry Summers wrote on Twitter Monday, adding that the plan was “highly problematic” given the economic differences and lack of political alignment between Brazil and Argentina, shared run-ins with populist political movements, and issues with fixed exchange rates.

Summers conceded he is no specialist in Latin American economies and invited other experts to comment, but even developmental economists and authorities in South American economies have been scratching their heads at the move.

“This is insane,” Olivier Blanchard, a French economist and former chief economist for the International Monetary Fund, wrote on Twitter Sunday, while José De Gregorio, a Chilean economist and the country’s former minister for the economy and governor of its central bank, called the idea a “total waste of time” on Monday.

“The announcement of a single currency is the most absurd thing I have heard and not very credible,” De Gregorio told local outlet Radio Infinita. He compared the plan unfavorably to the euro, which unlike in Latin America began with a “very deep economic union” between countries. He also warned that Brazil risked unsettling its monetary policy by integrating its currency with Argentina.

Argentina has been one of the most economically volatile countries in the world in recent years. Inflation in Argentina topped 100% in November, and the country’s revolving door of ministers and policies have caused its economic climate to bounce from interventionist government to pro-business and free market and back again multiple times over the years.

The recent bout of inflation has sparked a wage and cost of living crisis in the country whose citizens were still reeling from the pandemic’s economic shock, leading to massive anti-government protests last year.

One stable element for Argentina has been its trade relationship with Brazil, which in the first 11 months of last year was worth $26.4 billion, according to the Financial Times, a 21% increase over the same period the year prior.

In the short term, facilitating trade may be the priority for Brazil and Argentina rather than establishing a new currency, Brazil Finance Minister Fernando Haddad told reporters at the Buenos Aires summit on Monday.

“We need to see how we’ll do it, but the idea is that we may have a common means of payment between both countries,” he said, adding that the targeted level of monetary unification would not reach that of the euro.

If trade and economic reforms are the ultimate outcome of the common currency idea, that is something more economists can get on board with. 

Neither Brazil nor Argentina have the “initial conditions to make this succeed and attract others,” Mohamed El-Erian, president of Queen’s College at Cambridge and chief economic adviser at Allianz, wrote on Twitter Sunday. But he added that talks including at the ongoing summit could pave the way for much more robust economic changes.

“The best this initiative can hope for is that talk creates some political cover for much-needed economic reforms,” he wrote.

Learn how to navigate and strengthen trust in your business with The Trust Factor, a weekly newsletter examining what leaders need to succeed. Sign up here.
About the Author
Tristan Bove
By Tristan Bove
LinkedIn iconTwitter icon
See full bioRight Arrow Button Icon

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.


Most Popular

placeholder alt text
Retail
Trump just declared December 26th a national holiday. What's open and closed?
By Dave SmithDecember 26, 2025
1 day ago
placeholder alt text
Success
As millions of Gen Zers face unemployment, CEOs of Amazon, Walmart, and McDonald's say opportunity is still there—if you have the right mindset
By Preston ForeDecember 26, 2025
1 day ago
placeholder alt text
Investing
Logan Paul auctions off $5.3 million Pokémon card, urging young people to invest more in nontraditional assets: 'Don't be afraid to take a risk'
By Sydney LakeDecember 25, 2025
2 days ago
placeholder alt text
Success
Billionaire philanthropy's growing divide: Mark Zuckerberg stops funding immigration reform as MacKenzie Scott doubles down on DEI
By Ashley LutzDecember 22, 2025
5 days ago
placeholder alt text
Economy
Trump's tariffs actually slashed the deficit from a record $136.4 billion to less than half that. Here's what else they did
By Wyatte Grantham-Philips, Paul Wiseman and The Associated PressDecember 26, 2025
1 day ago
placeholder alt text
Real Estate
Mark Zuckerberg gifted noise-canceling headphones to his Palo Alto neighbors because of the nonstop construction around his 11 homes
By Dave SmithDecember 25, 2025
2 days ago

Latest in Finance

EconomyDebt
After U.S. debt soared to $38 trillion, the ‘easy times’ are now over as hedge funds jump into the bond market, former Treasury official warns
By Jason MaDecember 27, 2025
2 hours ago
Federal Reserve Gov. Chris Waller engages 200 top CEOs at the Yale CEO Summit in December, 2025. (Photo courtesy of the Yale Chief Executive Leadership Institute/Photographer Donovan Marks)
CommentaryFederal Reserve
Why over 80% of America’s top CEOs think Trump would be wrong not to pick Chris Waller for Fed chair
By Jeffrey Sonnenfeld and Steven TianDecember 27, 2025
5 hours ago
Alex Bores stands near a window in the Capitol building
AIdeepfakes
Ex-Palantir turned politician Alex Bores says AI deepfakes are a ‘solvable problem’ if we bring back a free, decades-old technique
By Dave SmithDecember 27, 2025
6 hours ago
RetailGrocery
Three in four Americans say groceries are so expensive they’ve been forced to cut down on other spending
By Andrew Adam Newman and Retail BrewDecember 27, 2025
8 hours ago
AIData centers
At the edges of the AI data center boom, rural America is up against Silicon Valley billions
By Sharon GoldmanDecember 27, 2025
8 hours ago
research
Cybersecuritydeepfakes
2026 will be the year you get fooled by a deepfake, researcher says. Voice cloning has crossed the ‘indistinguishable threshold’
By Siwei Lyu and The ConversationDecember 27, 2025
9 hours ago