MANY observers are converging towards a highly downbeat 2021 outlook for the US dollar. This view is at times associated with a surging risk appetite, the end of a strong dollar cycle or a twin deficit crash.

Given the seeming random walk nature of exchange rates, forecasting the dollar's 2021 outlook could be an act of hubris. That said, the dollar may indeed fall this year, but an overly negative narrative is unwarranted.

Many arguments for a future slump don't hold up.

First, the dollar is already falling sharply. The dollar index (DXY) in 2020 was down 13 per cent from its March highs and around 7 per cent for the year.

The DXY is a proxy for dollar trading versus major foreign exchange pairs. Three-quarters of it derives from the euro or currencies related to the euro.

But those currencies account for roughly a quarter of US trade. The dollar's March peak was distorted by financial market panic.

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Over half of US trade is with emerging markets. China and Mexico account for half of that, with other Asian countries adding another fifth or more.

The US Federal Reserve's trade weighted indices show less dramatic movements than the DXY - the dollar was down around 2.5 per cent in 2020 (roughly 5.5 per cent down against advanced economies and up 0.5 per cent against emerging markets).

Second, as economies rebound from Covid-19 and a vaccine comes on line, risk appetite will strongly favour non-dollar currencies. This plausible view needs to be tempered.

America's fiscal support and growth potential are higher than Europe's or Japan's. Faster US growth often supports the dollar. Vaccine distribution may not be smooth.

Economic scarring could hold back the recovery. Even in a risk-on environment there will be bouts of volatility and risk aversion.

DOLLAR SELLING

Third, relatively easier US monetary conditions may trigger dollar selling.

Shifting interest differentials and relative monetary policy stances are key exchange rate drivers.

However, advanced economy central banks have all slashed interest rates to zero or the effective lower bound and are pursuing quantitative easing. Rate differentials are compressed.

This reality is unlikely to change anytime soon with central banks remaining on hold.

But even assuming significant dollar depreciation, Europe and Japan would fret about deflation and lost exports. The European Central Bank and Bank of Japan would turn towards further accommodation.

Fourth, the strong dollar cycle is ending. There have been three periods of major dollar moves: In the late 1970s, the dollar plunged amid lost confidence in US economic policy as inflation spiked.

In the early 1980s, the dollar soared after Paul Volcker tightened monetary policy to curb inflation; this move was furthered by expansionary fiscal policy and the dollar recovering from its late-1970s lows.

Before and after the global financial crisis, the dollar fell as the US pursued monetary accommodation earlier and more aggressively than Europe and others.

And dollar cycles tend to last a decade or less. Indeed, the real trade- weighted dollar has been on an upswing for the past eight years and is now on the strong side.

But the dollar is nowhere close to peaks associated with large past swings. It is still far below its 1985 Plaza accord era peak and its 2002 top after the euro tumbled upon its inauguration, and well above its post-great recession lows.

US TWIN DEFICITS

Fifth, US twin deficits will tank the dollar.

With the advent of fracking, the US current account deficit has remained around 2 per cent of gross domestic product per year over the last decade, though the Covid-19 pandemic will boost it. The US will run large fiscal deficits to overcome the crisis.

But America has the world's deepest and most liquid capital markets. It issues the world's leading safe asset - US Treasuries. Interest rates are rock bottom and the Fed will continue buying a large portion of US debt issuance. If demand abates, slight yield increases will draw inflows back.

Twin deficits might become an issue in the future. But in the meantime, America can well finance them.

Sixth, emerging market currencies may rise sharply on strong risk appetite.

The outlook for emerging market currencies points to modest appreciation. The yuan is a good candidate for further appreciation. China's current account surplus is rising sharply on the back of lower oil prices, a collapse in tourism outflows, and strong personal protective equipment and work-from-home exports.

The capital account has been bolstered by inflows attributed to relatively high government bond yields and the inclusion of yuan equities and bonds in global emerging markets indices.

But the authorities may become wary of further large gains and carefully allow more outflows.

The Mexican peso will likely remain supported by relatively high interest rates and the country's conservative macro stance.

Asian currencies may experience upward pressures, but will seek to limit these.

Adding it up, the dollar's trade weighted index may well decline in 2021, but a large depreciation or crash does not appear likely. Of course, never ignore the random walk. OMFIF

• The writer is US chairman of the Official Monetary and Financial Institutions Forum.