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

Trendingnow

1

Elon Musk on MacKenzie Scott giving away $26 billion of her fortune: 'Sadly,' it makes the world a worse place

2

MacKenzie Scott alone accounted for one-third of America's $19.2 billion in megagifts last year

3

Philanthropy leader at Warren Buffett and Bill Gates’ Giving Pledge says children of billionaires are pushing them to give their wealth away faster

1

Elon Musk on MacKenzie Scott giving away $26 billion of her fortune: 'Sadly,' it makes the world a worse place

2

MacKenzie Scott alone accounted for one-third of America's $19.2 billion in megagifts last year

3

Philanthropy leader at Warren Buffett and Bill Gates’ Giving Pledge says children of billionaires are pushing them to give their wealth away faster

What exactly is a currency war, anyway?

By
Nin-Hai Tseng
Nin-Hai Tseng
Down Arrow Button Icon
By
Nin-Hai Tseng
Nin-Hai Tseng
Down Arrow Button Icon
October 18, 2010, 2:35 PM ET
Add Fortune on Google for similar content.

Currency volatility is certainly a problem, but no one’s quite sure if we’ll know when it becomes a full-blown war.



Tensions are escalating among some of the world’s biggest economies as finance ministers find incentives to devalue their currencies. But are we in a currency war, or merely a currency spat?

Treasury Secretary Tim Geithner says unequivocally it is not a war. He told Charlie Rose last week there is “no risk” of the current strife escalating to a currency war. But Brazilian Finance Minister Guido Mantega disagrees — last month he publicly said an “international currency war” has broken out.

When pressed for an explanation of what exactly a currency war is, a Treasury Department spokesperson emailed this response: “I don’t think we’re best suited to define the term for you. As I understand it, the Brazilian Finance Minister coined the term so you may want to go straight to the source.”

And there you have the real answer: No one really knows exactly when this kind of global economic tension actually becomes war. Even Geithner, who adamantly says there’s no risk of a war, apparently isn’t in a position to define it.

Whatever name we assign to the state of the world’s currency problems, Mantega’s alarm isn’t entirely unfounded. For one, Japan last month sold an estimated $20 billion of yen. This marks the first time in six years officials have intervened in the foreign exchange markets, although for now at least, they’re expected to refrain from intervening further. South Korea has also held down the won by intervening occasionally over the past year. And countries ranging from Singapore to Colombia have warned about the strength of their currencies.

And China’s relatively weak renminbi has long been a sore spot. Bad domestic conditions in the U.S. and other parts of the world have made world leaders especially touchy to the perception that they are somehow being screwed by currency manipulation.

There is good reason for countries to intervene in their currency valuations: A lower exchange rate generally makes selling goods and services abroad cheaper – a competitive edge that’s grown increasingly attractive as world leaders look to recover from a global recession marked by tighter credit markets, and for some, unnervingly high levels of debt and unemployment that have contributed to plunges in domestic demand.

Central bankers around the globe are trying to give their economies an extra jolt, such as slashing interest rates and even taking the unusual route of essentially printing vast amounts of cash, which U.S. Federal Reserve Chairman Ben Bernanke last week focused on as an option to boost the economy.

Whatever the intentions, all these actions end up weakening currencies. More important, such “beggar-thy-neighbor” interest rate policies tend to encourage a domino effect: The fall of one currency leads to the irritating rise of another, and so on.

And what could transpire is competitive devaluation similar to that of the 1930s, the last time there was an official currency war. Back then, collapse in confidence in the international gold standard sent the British pound on a downward spiral and caused huge exchange rate volatility throughout the world.

Risk of a trade war

The currency war led to trade wars, which worsened the Great Depression as tensions contributed to rising tariffs and considerable drops in international trade. Mark Thoma, economist at the University of Oregon, says today’s state of affairs signals that a trade war isn’t too far away, especially if the Fed next month decides to buy Treasury securities with newly created dollars. Another round of quantitative easing could send several currencies on a worrisome downward path.

So policies intended to give the economy a boost might actually hurt growth in the long run. Competitive devaluation could lead to a fall in world trade, as well as foreign investments. And expansion of the global money supply could create a bubble in commodities.

The U.S. is being cautious, as China is one of its main trading partners. Even South Korea, host of the upcoming G20 meeting next month, has reportedly been hesitant from highlighting the currency issue on the gathering’s agenda, according to the Financial Times.

Perhaps the deeper problem has more to do with political imbalances than anything currency related. It’s no secret that emerging economies generally survived the global recession better than industrialized nations. This has shifted economic influences away from star economies including the U.S., Europe and Japan.

And amidst the economic recovery, it’s really an economic race to the top.

See also:

Is the dollar toast?

China sill stockpiling foreign currency

Dollar war heats up

About the Author
By Nin-Hai Tseng
See full bioRight Arrow Button Icon
Add Fortune on Google for similar content.

Latest in

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
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
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
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in

Brown University Professor Roberto Serrano, a man in a suit holding onto a gold trophy--the King Of Spain Economy Award"-- before Spain's King Felipe and a painted wall.
AIEducation
‘Humanity has chosen to become idiots’: This Brown professor switched to take-home exams after a mass shooting and discovered mass cheating
By Catherina GioinoJune 29, 2026
4 hours ago
bis
EconomyMarkets
The central bank of central banks just released its flagship annual report — and it sees a $1 trillion AI investment boom headed for a reckoning
By Nick LichtenbergJune 29, 2026
4 hours ago
U.S. official says $6 billion in frozen Iranian assets will be released, while Oman discusses possible Hormuz service fees with Tehran
PoliticsIran
U.S. official says $6 billion in frozen Iranian assets will be released, while Oman discusses possible Hormuz service fees with Tehran
By Jon Gambrell, Josh Boak and The Associated PressJune 29, 2026
5 hours ago
paralegal
AIdisruption
The most reassuring argument about AI and jobs quietly explains why Gen Z can’t get one
By Nick LichtenbergJune 29, 2026
8 hours ago
This summer’s heat is a live stress test for data centers—here’s what it’s revealing in real time
AIData centers
This summer’s heat is a live stress test for data centers—here’s what it’s revealing in real time
By Tristan BoveJune 29, 2026
8 hours ago
Lisa Cook and E. Jean Carroll win against Trump at the Supreme Court
NewslettersMPW Daily
Lisa Cook and E. Jean Carroll win against Trump at the Supreme Court
By Emma HinchliffeJune 29, 2026
8 hours ago

Most Popular

Elon Musk on MacKenzie Scott giving away $26 billion of her fortune: 'Sadly,' it makes the world a worse place
Success
Elon Musk on MacKenzie Scott giving away $26 billion of her fortune: 'Sadly,' it makes the world a worse place
By Sydney LakeJune 29, 2026
10 hours ago
MacKenzie Scott alone accounted for one-third of America's $19.2 billion in megagifts last year
Success
MacKenzie Scott alone accounted for one-third of America's $19.2 billion in megagifts last year
By Sydney LakeJune 25, 2026
5 days ago
Philanthropy leader at Warren Buffett and Bill Gates’ Giving Pledge says children of billionaires are pushing them to give their wealth away faster
Success
Philanthropy leader at Warren Buffett and Bill Gates’ Giving Pledge says children of billionaires are pushing them to give their wealth away faster
By Preston ForeJune 27, 2026
3 days ago
The retired college professor fighting a $313 trespassing ticket in Wisconsin thinks he's part of a national struggle
Environment
The retired college professor fighting a $313 trespassing ticket in Wisconsin thinks he's part of a national struggle
By Catherina GioinoJune 28, 2026
2 days ago
Ex-Google engineer says Larry Page, Sergey Brin and Sundar Pichai share the same trait—it's the lesson he swears by as a $7.2 billion AI CEO
Success
Ex-Google engineer says Larry Page, Sergey Brin and Sundar Pichai share the same trait—it's the lesson he swears by as a $7.2 billion AI CEO
By Orianna Rosa RoyleJune 28, 2026
2 days ago
Cristiano Ronaldo is soccer's first-ever billionaire: He went from begging for burgers outside McDonald's to landing a $400 million contract
Success
Cristiano Ronaldo is soccer's first-ever billionaire: He went from begging for burgers outside McDonald's to landing a $400 million contract
By Preston ForeJune 28, 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.