How many times over the past few months have some remain supporters tried to tell us that tariffs on imported goods are a very big deal indeed? Were trade between Britain and the EU to revert to World Trade Organisation (WTO) rules, they assert, the UK economy would be reduced to ruins. Food prices would soar, leaving millions scrabbling around in bins. British firms will never export anything ever again.
This morning comes a slightly different tack. Actually, it seems that tariffs don’t really matter all that much at all. Removing them, according to reports broadcast loudly at various points during the Today programme this morning, will hardly affect consumer prices.
The reason for the sudden change of heart? The IFS has produced a study claiming that if a post-Brexit UK government took the opportunity to remove all tariffs on imported goods the prices paid by consumers in the shops would fall only by between 0.7

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