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Export restrictions by some countries could force global crop prices to rise

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Recent events such as the COVID-19 pandemic, locust infestations, drought and labor shortages have disrupted food supply chains, endangering food security in the process. A recent study published in Nature Food shows that trade restrictions and stockpiling of supplies by a few key countries could create global food price spikes and severe local food shortages during times of threat.

‘We quantified the potential effects of these co-occurring global and local shocks globally with their impacts on food security,’ explains Aalto University Associate Professor Matti Kummu. The results of this research have critical implications on how we should prepare for future events like COVID-19, he says.

The researchers modelled future scenarios to investigate the impact of export restrictions and local production shocks of rice, wheat, and maize would have on their supply and price. These three crops form the backbone of global trade in staple crops and are essential for food security across the globe.

The results show that restriction by only three key exporters of each crop would increase the price of wheat by 70 percent, while maize and rice would rise by 40 percent and 60 percent. When combining this with potential local shocks that occurred last year, the prices would nearly double.

Kummu explains: “This is the result of an increasingly interconnected world, in which the majority of countries are dependent on imported food and, so, vulnerable to this kind of shock.”

“We saw that trade restrictions by only a few key actors can create large short-term price spikes in the world market export price of grains, which can lead to food insecurity in import-dependent countries,” explains Postdoctoral Researcher Theresa Falkendal, Potsdam Institute for Climate Impact Research.

By suddenly losing more than one-third of their annual grain supply, many low-income and lower-middle-income countries in Africa and Asia would not be able to cover this grain supply deficit with their domestic reserves, and would need alternative grain sources to survive.

“It’s important to realize that food security depends on both local and remote conditions, and imprudent policy decisions in the rich part of the world can plunge people into real hardship in poorer parts of the world,” states Falkendal.

But shock scenarios such as those modelled by the researchers and the risks they bring may become commonplace.

The COVID-19 pandemic’s effect on global agricultural supply chains, as well as locusts destroying crops and livelihoods in the Horn of Africa and South Asia, have had a devastating effect on food security.

Thus, timely and coordinated international responses are needed to minimize threats to food security especially to low-income and middle-income countries which lack the resources and purchasing power of larger nations, to ensure affordable staple grains for the world’s poorest citizens, and to avert a humanitarian crisis.

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