‘In economic terms, Trump’s tariffs make no sense at all’

President's move has no historic parallels, but the deep uncertainty for the global economy may prove as destructive as the tariffs

From world leaders, to the tiniest manufacturers thousands of miles from Washington, decision-makers across the global economy are racked with uncertainty as they scramble to come to terms with Donald Trump's historic tariffs.

Experts are all but unanimous that the impact on global growth of Wednesday's extraordinary Rose Garden press conference will be negative - but just how bad remains highly uncertain.