From COVID to Donald Trump's tariffs — with wars in Ukraine and the Middle East in between — world trade policy is enduring the most unpredictable period of the postwar era. The pandemic shut factories worldwide and accelerated a shift away from China , the world’s largest manufacturer. The two conflicts then disrupted global supplies of oil and gas, food and fertilizer. US President Donald Trump’s tariffs, meanwhile, pushed US duties to their highest level in decades, forcing firms to find new suppliers and markets. Robert Staiger, chief economist at the World Trade Organization (WTO), calls the turmoil "the most serious and sustained disruptions since the [world trading] system was created 80 years ago.
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