Prospects for a quick recovery in world trade have improved as merchandise trade expanded more rapidly than expected in the second half of last year.

According to new estimates from the WTO, the volume of world merchandise trade is expected to increase by 8.0 percent in 2021 after having fallen 5.3 percent in 2020, continuing its rebound from the pandemic-induced collapse that bottomed out in the second quarter of last year.

Trade growth should then slow to 4.0 percent in 2022, and the effects of the pandemic will continue to be felt as this pace of expansion would still leave trade below its pre-pandemic trend.

The relatively positive short-term outlook for global trade is marred by regional disparities, continued weakness in services trade, and lagging vaccination timetables, particularly in poor countries. COVID-19 continues to pose the greatest threat to the outlook for trade, as new waves of infection could easily undermine any hoped-for recovery.

"The strong rebound in global trade since the middle of last year has helped soften the blow of the pandemic for people, businesses, and economies," WTO Director-General Ngozi Okonjo-Iweala said.

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"Keeping international markets open will be essential for economies to recover from this crisis and a rapid, global and equitable vaccine roll-out is a prerequisite for the strong and sustained recovery we all need."

"Ramping up production of vaccines will allow businesses and schools to reopen more quickly and help economies get back on their feet. But as long as large numbers of people and countries are excluded from sufficient vaccine access, it will stifle growth, and risk reversing the health and economic recovery worldwide," she said.

The Director-General added that trade through value chains has helped countries access food and essential medical supplies during the crisis.

"Manufacturing vaccines requires inputs from many different countries. One leading COVID-19 vaccine includes 280 components sourced from 19 different countries," she said. "Trade restrictions make it harder to ramp up production. The WTO has helped keep trade flowing during the crisis. Now, the international community must leverage the power of trade to expand access to life-saving vaccines."

Short-term risks to the forecast are firmly on the downside and centred on pandemic-related factors. These include insufficient production and distribution of vaccines, or the emergence of new, vaccine-resistant strains of COVID-19. Over the medium-to-long term, public debt and deficits could also weigh on economic growth and trade, particularly in highly indebted developing countries.

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The forecast illustrates two alternative scenarios for trade. In the upside scenario, vaccine production and dissemination would accelerate, allowing containment measures to be relaxed sooner. This would be expected to add about 1 percentage point to world GDP growth and about 2.5 percentage points to world merchandise trade volume growth in 2021. Trade would return to its pre-pandemic trend by the fourth quarter of 2021. In the downside scenario, vaccine production does not keep up with demand and/or new variants of the virus emerge against which vaccines are less effective. Such an outcome could shave 1 percentage point off of global GDP growth in 2021 and lower trade growth by nearly 2 percentage points.

For the whole of 2020, merchandise trade was down 5.3 percent. This drop is smaller than the 9.2 percent decline foreseen in the WTO's previous forecast in October 2020. The better than expected performance towards the end of the year can partly be explained by the announcement of new COVID-19 vaccines in November, which contributed to improved business and consumer confidence.

The volume of world merchandise trade plunged 15.0 percent year-on-year in the second quarter of 2020 (revised up from -17.3 percent in October) as countries around the world imposed lockdowns and travel restrictions to limit the spread of COVID-19. Lockdowns were eased in the second half of the year as infection rates came down, allowing goods shipments to surge back to near 2019 levels by the fourth quarter.

The impact of the pandemic on merchandise trade volumes differed across regions in 2020, with most regions recording large declines in both exports and imports. Asia was the sole exception, with export volumes up 0.3 percent and import volumes down a modest 1.3 percent. Regions rich in natural resources saw the largest declines in imports, including Africa (-8.8 percent), South America (-9.3 percent) and the Middle East (-11.3 percent), probably due to reduced export revenues as oil prices fell around 35 percent. In comparison to other regions, the decline in North American imports was relatively small (-6.1 percent).

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In 2021, demand for traded goods will be driven by North America (11.4 percent) thanks to large fiscal injections in the United States, which should also stimulate other economies through the trade channel. Europe and South America will both see import growth of around 8 percent, while other regions will register smaller increases.

Much of global import demand will be met by Asia, exports from which are expected to grow by 8.4 percent in 2021. European exports will increase nearly as much (8.3 percent), while shipments from North America will see a smaller rise (7.7 percent). Strong forecasts for export growth in Africa (8.1 percent) and the Middle East (12.4 percent) depend on travel expenditures picking up over the course of the year, which would strengthen demand for oil. Meanwhile, South America will see weaker export growth (3.2 percent), as will the Commonwealth of Independent States (CIS), including certain former and associate Members (4.4 percent).