• 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’

By
Tristan Bove
Tristan Bove
Contributing Reporter
Down Arrow Button Icon
By
Tristan Bove
Tristan Bove
Contributing Reporter
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
By Tristan BoveContributing Reporter
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
Fortune Secondary Logo
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
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • 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
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
Fortune Secondary Logo
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Finance

hyams
CommentaryHBCUs
AI is the most important civil and human rights issue of our time — HBCUs need to be in the driver’s seat
By Chris Hyams and Meme StylesMarch 11, 2026
35 minutes ago
tax
CommentaryTaxes
How the ultrawealthy use smartphone apps to avoid millions in taxes
By Jose AtilesMarch 11, 2026
35 minutes ago
Personal FinanceCertificates of Deposit (CDs)
Top CD rates today, March 11, 2026: Lock in up to up to 4.30%
By Glen Luke FlanaganMarch 11, 2026
39 minutes ago
Personal FinanceSavings accounts
Today’s top high-yield savings rates: Up to 5.00% on March 11, 2026
By Glen Luke FlanaganMarch 11, 2026
39 minutes ago
entrepreneurs
Personal FinanceEntrepreneurs
63% of U.S. entrepreneurs are planning to exit their businesses. A new UBS report explains why
By Catherina GioinoMarch 11, 2026
2 hours ago
Investinginvestors
Bill Ackman is a self-described ‘Buffett devotee’—and wants his $28 billion Pershing empire to be the ‘modern-day’ Berkshire
By Marco Quiroz-GutierrezMarch 11, 2026
3 hours ago

Most Popular

placeholder alt text
Economy
'This cannot be sustainable': The U.S. borrowed $50 billion a week for the past five months, the CBO says
By Eleanor PringleMarch 10, 2026
20 hours ago
placeholder alt text
Real Estate
Billionaires Elon Musk and Mark Zuckerberg used mortgages to buy multimillion-dollar mansions. Here’s why that’s a savvy financial decision
By Sydney LakeMarch 9, 2026
2 days ago
placeholder alt text
Future of Work
Shark Tank's Kevin O'Leary doesn't care if you work from your basement. He just wants to know if you can ‘execute’
By Marco Quiroz-GutierrezMarch 10, 2026
1 day ago
placeholder alt text
Investing
Oracle is under pressure from more than $100 billion in debt and massive layoffs as it pushes ahead with Larry Ellison’s 3-step transformation 
By Amanda GerutMarch 9, 2026
1 day ago
placeholder alt text
Economy
Trump's immigration crackdown is backfiring by hurting the U.S.-born workers it was meant to help, data shows
By Sasha RogelbergMarch 10, 2026
16 hours ago
placeholder alt text
Personal Finance
Current price of gold as of March 9, 2026
By Danny BakstMarch 9, 2026
2 days ago

© 2026 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.