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Oct. 10, 2022, 6:50 a.m. EDT

A rampaging U.S. dollar is wreaking havoc in markets: Here’s why it won’t quit.

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By William Watts

The U.S. dollar keeps getting compared with a “wrecking ball” in regard to the economic and market havoc caused by its outsize 2022 rally.

But there’s only so much central bankers and other economic policy makers can do, warned Paul F. Gruenwald, global chief economist at S&P Global, in a Thursday note. To address the factors really driving the dollar’s rally will require politicians do the heavy lifting, he argued.

See: Why an epic U.S. dollar rally could be a ‘wrecking ball’ for financial markets

So how strong is the dollar? The ICE U.S. Dollar Index /zigman2/quotes/210598269/delayed DXY +0.10% , a measure of the currency against a basket of six major rivals, hit a 20-year high shy of 115 last month before pulling back in early October. It remains up more than 17% for the year to date and nearly 20% over the last 12 months.

The British pound /zigman2/quotes/210561263/realtime/sampled GBPUSD -0.2303% fell last month to an all-time low versus the U.S. dollar as the U.K. became engulfed in a fiscal crisis. The euro /zigman2/quotes/210561242/realtime/sampled EURUSD -0.0741% has dropped below parity versus the dollar, with the eurozone expected to suffer a brutal winter downturn as a result of the energy shock created by Russia’s invasion of Ukraine. The Japanese yen recently traded at its lowest versus the U.S. dollar versus 1998, prompting a rare round of intervention by the Bank of Japan. The U.S. dollar fetches more than 7 Chinese yuan /zigman2/quotes/210561991/realtime/sampled USDCNY -0.1580% /zigman2/quotes/210561989/realtime/sampled USDCNH +0.0579% , having crossed that important threshold as the world’s second-largest economy slows in response to Beijing’s zero-COVID policy.

See: Don’t look for a stock market bottom until a soaring dollar cools down. Here’s why.

Why is a strong dollar a problem? While a stronger dollar helps keep a lid on inflation in the U.S., the depreciation of rival currencies amplifies inflation in those economies. The scope and speed of the dollar’s rally has stirred fears of market dislocations and  stresses in emerging and developing economies  that carry a high proportion of dollar-denominated debt. The dollar’s gains are also viewed as a negative for U.S. large-cap multinationals who rely on international sales.

Read below what Gruenwald had to say about the four options available to countries and economies struggling to fend off a strong dollar — and why none of them are ideal:

There are also “global options,” the economist notes. These include dollar swap lines with other countries, such as those that were expanded or initiated in early 2020 as a global scramble for U.S. currency sent the greenback soaring as the COVID-19 pandemic slammed the global economy. While swap lines have proved effective in such situations, it isn’t clear they would be appropriate for soaring dollar valuations, Gruenwald wrote, “because they are akin to extra reserves: they are likely to be depleted in defending an exchange rate level.”

And then there’s the big one. A Plaza Accord-style agreement between major economies. The 1985 Plaza Accord saw the Federal Reserve and the central banks of Germany, the U.K., France and Japan agreed to intervene to bring down the value of the U.S. dollar, which, as Gruenwald described, had seen the “mother of all…appreciations.”

Related: Why a soaring dollar is raising questions — and doubts — about a Plaza Accord-style intervention

But even though the current pain of dollar strength is becoming evident and on the rise, DXY is still three to four standard deviations away from its peak in 1985, he said, noting that the focus then was on trade imbalances and that China wasn’t part of the discussion given its small economy at that time.

At some point, the pain may become too much to bear.

“Ultimately, resolution will depend not just on economics but also politics,” Gruenwald wrote.

Dollar strength “becomes excessive when it starts to negatively impact other economies more than it benefits the U.S. The exact measurement of this is difficult,but one way to gauge it is to ask: What would a global, benevolent policy maker prescribe?” he wrote.

At some point a strong dollar becomes less than optimal for all involved, “and if markets do not correct, the solution will have a political element,” Gruenwald wrote.

The extreme — and persistently — high U.S. dollar of the 1980s was in the end brought downthrough the Plaza Accord, he noted. “The actors may be different this time around, but the endgame might end up looking the same.”

US : U.S.: ICE Futures U.S.
+0.11 +0.10%
Volume: 0.00
Dec. 8, 2023 3:54a
US : Tullett Prebon
-0.0029 -0.2303%
Volume: 0.0000
Dec. 8, 2023 4:04a
US : Tullett Prebon
-0.0008 -0.0741%
Volume: 0.0000
Dec. 8, 2023 4:04a
US : Tullett Prebon
-0.0113 -0.1580%
Volume: 0.0000
Dec. 8, 2023 4:04a
US : Tullett Prebon
+0.0042 +0.0579%
Volume: 0.0000
Dec. 8, 2023 4:04a

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