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Video: How the U.S. Dollar Spread Across the World



Video: How the U.S. Dollar Spread Across the World

The U.S. dollar is the world’s dominant reserve currency, making up about 64% of all official foreign exchange reserves.

The euro is second on the list. The euro had shown decent promise as a reserve currency up until 2009, when it peaked at 28% of global reserves. However, between the European Debt Crisis and years of anemic growth in major European countries, the currency has declined to 20% of official global reserves today.

Other currencies held as foreign reserves include British pounds (5%), Japanese yen (4%), Canadian dollars (2%), and Australian dollars (2%). Swiss francs and other currencies make up the remaining 3%.

The Chinese yuan also recently won IMF approval to make up part of its Special Drawing Rights (SDR) basket. More and more trade is in Chinese currency, and the country’s bond markets are beginning to grow and internationalize.

The yuan is not a significant player yet, but in the future it may be.

The Rise of the Dollar

History has shown that every 100 years or so, the world’s de facto reserve currency has been replaced.

The last time this happened was after World War II, when the Bretton Woods system came into effect. Under this system, the U.S. dollar was established as the global anchor currency, linked to gold at a fixed rate. The combination of post-war growth in the U.S. economy along with the official link between dollars and gold provided the international monetary system with a degree of certainty that had been missing for decades.

In 1971, Nixon severed the link between the U.S. dollar and gold, but continued U.S. economic and financial strength would keep the dollar prominent on the international monetary stage for decades to come.

What Does the Future Hold?

The video in this post, created by the team at shows the evolution in acceptance of the greenback. At first, it was U.S. overseas territories such as Guam and the U.S. Virgin Islands that would adopt the dollar. Later in the 20th century, major nations from China to Argentina would attempt to peg their currencies to the dollar for much-needed stability.

Will this dollar hegemony continue well into the future?

As notes in its post, it is the size, stability, and liquidity of the country’s financial markets that are the major underlying factors to determine the strength of a reserve currency.

While China is now the largest economy in the world in terms of purchasing power, the financial markets of the United States still reign supreme. For example, U.S. stock markets still make up 52% of the total market capitalization of global equity markets. China’s markets are puny in comparison at around 2%.

There are signs of a shift in momentum, however.

U.S. Treasuries have less liquidity and China has been dumping them on the market. The yuan is officially part of the SDR basket in October 2016, and China could see an inflow of up to $3 trillion in renminbi assets as a result. The yuan has also now passed the yen in terms of cross-border trade volume.

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Ranked: Government Debt by Country, in Advanced Economies

This graphic ranks government debt by country for advanced economies, using their gross debt-to-GDP ratio.



Government Debt by Country, in Advanced Economies

The amount of debt a government holds is a crucial indicator for the sustainability of its finances.

If the debt is excessively high—especially as a percentage of gross domestic product (GDP)—it may signal challenges in meeting financial obligations, potentially leading to economic instability.

This graphic ranks government debt by country for advanced economies, using their gross debt-to-GDP ratio. The ranking is based on IMF Outlook from October 2023.

Debt-to-GDP Ratio for Advanced Economies in 2023

From 20 economies analyzed, 11 have a debt-to-GDP ratio of over 100%.

At the top is Japan, whose national debt has remained above 100% of its GDP for two decades, reaching 255% in 2023.

Economy by Gross Debt% of GDP (2023)
🇯🇵 Japan255%
🇬🇷 Greece168%
🇸🇬 Singapore168%
🇮🇹 Italy144%
🇺🇸 United States*123%
🇫🇷 France110%
🇵🇹 Portugal108%
🇪🇸 Spain107%
🇨🇦 Canada*106%
🇧🇪 Belgium106%
🇬🇧 United Kingdom104%
🇨🇾 Cyprus79%
🇦🇹 Austria75%
🇫🇮 Finland74%
🇸🇮 Slovenia69%
🇩🇪 Germany66%
🇭🇷 Croatia64%
🇮🇸 Iceland61%
🇮🇱 Israel58%
🇸🇰 Slovak Republic57%
🌎 G7 Average128%

*For the U.S. and Canada, gross debt levels were adjusted to exclude unfunded pension liabilities of government employees’ defined-benefit pension plans.

Japan has indeed been borrowing heavily, though mainly in the form of intergovernmental holdings with interest rates around 0%. However, with the country experiencing a rapidly aging population, an increasing burden of social security expenses could lead to an even larger fiscal deficit in the future.

The U.S. national debt hit $32 trillion in 2023, making up 123% of the country’s GDP. To put it in perspective, two decades ago, the U.S. debt-to-GDP ratio was less than half of what it is today. Nonetheless, it remains below the G7 average of 128%.

Germany’s ratio of 66% is the lowest in the G7, though it climbed following the COVID-19 pandemic. All EU member states attempt to keep their ratios below 60% for stability. Otherwise, when debt grows beyond what countries can pay, emergency bailouts and defaults lead to economies crashing, as seen in the European debt crisis from 2009 to 2014.

However, a high gross debt-to-GDP ratio (over 100%) is not always a cause for concern. Net ratios that take intergovernmental holdings into account can indicate exposure to debt better in the short-term, as does comparing liabilities and assets. The question is, where are debt ratios heading in the future?

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