Why the dollar keeps winning in the global economy

LONDON, Feb 28 (Reuters Breakingviews) – Reports of the dollar’s demise are greatly exaggerated. An erosion in the greenback’s share of global foreign exchange reserves, combined with rising geopolitical tensions, have rekindled talk of an end to the U.S. currency’s dominance. In fact, its lynchpin status remains unshaken. The outsized role played by the United States in capital markets, trade and debt reinforces the status quo. Unless the global economy undergoes a complete overhaul, the dollar will remain on top.

America may have never “run on Dunkin’”, as the donut-maker’s slogan claimed, but the global economy runs on the dollar. That makes many foreigners uneasy. Over-reliance on the American currency can lead to instability in emerging markets, dampen trade flows and create global spillovers, such as when financial markets melted down, opens new tab in March 2020.

This has been the case ever since the dollar’s coronation as the leading reserve currency after World War Two. In 1971 U.S. Treasury Secretary John Connally famously quipped that “the dollar is our currency but it is your problem”. In 2019, almost 50 years later, Bank of England Governor Mark Carney endorsed, opens new tab the same sentiment.

Current pretenders to the throne include the Chinese yuan and digital currencies. The People’s Republic has long tried to promote international use of its currency. Its latest gambit is to offer to oil exporters payment in yuan to widen the reach of the Chinese currency. Meanwhile some central banks are touting digital currencies as a way to create a more balanced global economy where no single country dominates.

The United States has spurred the search for alternatives by wielding its currency as a weapon against its adversaries. After Russia invaded Ukraine, America and its allies froze nearly half of the country’s $640 billion in foreign exchange reserves. The U.S. has also targeted dollars held by Afghanistan, Iran and Venezuela, while banks that circumvent American sanctions face hefty fines.

Proponents of regime change point to the steady fall in the dollar’s share of central banks’ foreign exchange reserves. That stood at around 59% in 2022, down from over 70% in 1999, according, opens new tab to the International Monetary Fund.

Meanwhile, the U.S. share of the world economic output has fallen from 32% in 1980 to 24% in 2020, according to calculations by the U.S. Federal Reserve, while the country’s share of global trade dropped from 14% to 11% in the same period.

Yet in other respects the dollar’s grip is as tight as ever. The dollar was on one side of 88% of all foreign exchange trades in April last year, according, opens new tab to the Bank for International Settlements. The Fed estimates, opens new tab that between 1999 and 2019 the dollar accounted for 96% of trade invoicing in the Americas, 74% in the Asia-Pacific region, and 79% in the rest of the world. Banks used the greenback for around 60% of all international deposits and loans.

Structural factors also help. U.S. capital markets are deep and liquid enough to absorb the savings of emerging and developed countries. The proceeds of an international “savings glut” are therefore recycled into U.S. assets.

The greenback’s function as the lubricant of global economic activity has another important effect: a stronger dollar curbs global trade. Research, opens new tab by American University’s Valentina Bruno and Hyun Song Shin of the BIS shows that when the U.S. currency appreciates, trading for companies in other countries becomes more expensive. This more than offsets the traditional export-boosting effect of a weaker domestic currency.

This contributes to what Fed researchers have dubbed, opens new tab an “Imperial Circle”. When the dollar strengthens, it puts the brakes on trade and global growth. Since U.S. economic growth is less dependent on the rest of the world, this increases the attractiveness of dollar-denominated assets for foreign investors. That, in turn, bolsters the dollar’s dominance of the world’s economy, further pushing up the currency’s value.

The trigger for this cycle is often an interest rate increase by the U.S. central bank, the Fed researchers found. What puts an end to it is the fact that, eventually, global weakness in the manufacturing sector spills over into U.S. production. Rate rises also lead to tighter financial conditions for companies and households, slowing down the U.S. economy. The central role of the dollar in capital markets, however, discourages investors from fleeing the United States, ensuring that the cycle soon starts again.

The period between December 2015, when the Fed raised rates, and December 2018, when the official cost of borrowing peaked at 2.25%-2.50%, illustrates the point. The dollar rose around 10% against other major currencies between mid-2015 and the beginning of 2017. During that period, manufacturing growth in the United States – measured by purchasing managers’ index surveys – outstripped that of the rest of the world while financing conditions overseas tightened. By mid-2017 the circle closed as U.S. manufacturing slowed down, domestic financial conditions tightened, and the dollar weakened.

Of course America cannot take its key role in global capitalism for granted. The weaponisation of the dollar, geopolitical tensions with China and the United States’ own political failings – from elected representatives disputing the results of the 2020 presidential election to squabbles over the debt ceiling – have increased the desire for alternatives.

For those factors to pose a serious threat to the dollar, though, they would have to trigger a shift in capital flows. China would need to recycle its savings domestically, running a current account deficit for the first time since 1993. And Japanese investors would have to repatriate at least some of their, opens new tab $1.3 trillion in U.S. Treasury bonds. Central banks, meanwhile, would have to find a safe and liquid alternative currency, or crypto asset, in which to park their reserves.

In the past such financial revolutions have generally coincided with other upheavals such as world wars. In the absence of such a seismic shift, King Dollar will remain on its throne.

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(The author is a Reuters Breakingviews columnist. The opinions expressed are his own. Updates to add charts.)

CONTEXT NEWS

Chinese President Xi Jinping told Gulf Arab leaders on Dec. 9 that his country would work to buy oil and gas in yuan, the latest attempt by Beijing to weaken the U.S. dollar’s grip on world trade.

A Saudi source, speaking before Xi’s visit, told Reuters that a decision to sell small amounts of oil in yuan to China could make sense, but “it is not yet the right time”.

For more insights like these, click here, opens new tab to try Breakingviews for free.

Editing by Peter Thal Larsen, Oliver Taslic and Pranav Kiran

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