By Isis Almeida and Agnieszka de Sousa

It’s not just grocery shoppers who are hoarding pantry staples. Some governments are moving to secure domestic food supplies during the coronavirus pandemic.

Kazakhstan, one of the world’s biggest shippers of wheat flour, banned exports of that product along with others, including carrots, sugar and potatoes. Vietnam temporarily suspended new rice export contracts. Serbia has stopped the flow of its sunflower oil and other goods, while Russia is leaving the door open to shipment bans and said it’s assessing the situation weekly.

To be perfectly clear, there have been just a handful of moves and no sure signs that much more is on the horizon. Still, what’s been happening has raised a question: Is this the start of a wave of food nationalism that will further disrupt supply chains and trade flows?

View photos Customers wait in a long queue to enter a Costco members wholesale outlet in Farnborough, west of London, on March 19, 2020. (Photo: ADRIAN DENNIS/AFP via Getty Images) More

“We’re starting to see this happening already -- and all we can see is that the lockdown is going to get worse,” said Tim Benton, research director in emerging risks at think tank Chatham House in London.

Though food supplies are ample, logistical hurdles are making it harder to get products where they need to be as the coronavirus unleashes unprecedented measures, panic buying and the threat of labor crunches.

Consumers across the globe are still loading their pantries -- and the economic fallout from the virus is just starting. The specter of more trade restrictions is stirring memories of how protectionism can often end up causing more harm than good. That adage rings especially true now as the moves would be driven by anxiety and not made in response to crop failures or other supply problems.

As it is, many governments have employed extreme measures, setting curfews and limits on crowds or even on people venturing out for anything but to acquire essentials. That could spill over to food policy, said Ann Berg, an independent consultant and veteran agricultural trader who started her career at Louis Dreyfus Co. in 1974.

“You could see wartime rationing, price controls and domestic stockpiling,” she said.

Some nations are adding to their strategic reserves. China, the biggest rice grower and consumer, pledged to buy more than ever before from its domestic harvest, even though the government already holds massive stockpiles of rice and wheat, enough for one year of consumption.

Key wheat importers including Algeria and Turkey have also issued new tenders, and Morocco said a suspension on wheat-import duties would last through mid-June.

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As governments take nationalistic approaches, they risk disrupting an international system that has become increasingly interconnected in recent decades.

Kazakhstan had already stopped exports of other food staples, like buckwheat and onions, before the move this week to cut off wheat-flour shipments. That latest action was a much bigger step, with the potential to affect companies around the world that rely on the supplies to make bread.

For some commodities, a handful of countries, or even fewer, make up the bulk of exportable supplies. Disruptions to those shipments would have major global ramifications. Take, for example, Russia, which has emerged as the world’s top wheat exporter and a key supplier to North Africa. Vietnam is the third-largest rice exporter, sending many of its cargoes to the Philippines.

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