No-deal Brexit could cost UK economy 9.3 per cent of GDP over 15 years: Govt

LONDON: If Britain crashes out of the EU without a deal its economy could end up being 9.3 per cent smaller in 15 years‘ time than would otherwise be the case, the government said on Wednesday.

A cross-departmental analysis found leaving the EU will leave Britain poorer than it would have been had it remained inside the bloc, even accounting for new trade deals it would eventually be able to sign.

It did not exactly model for the deal struck by Prime Minister with the EU last week, the outlines of which remain vague, but suggests something similar could see the economy shrink by as much as 3.9 per cent.

The 83-page report was published a fortnight before British MPs vote on the deal, with many deeply opposed.

The comprises a divorce agreement and a political declaration on future ties, which offers a “spectrum” of options for how Britain will trade with the EU after Brexit, the report said.

Given this range of options, the economic analysis offered two different models on what the final deal could look like, and assessed how they could affect the economy when combined with the government‘s hopes of ending free moment of EU workers into Britain.

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If Britain got the frictionless trade it wants, as outlined in a government plan in July, and there was no change to migration arrangements, the economy would still shrink by 0.6 per cent compared to what it would be otherwise.

If Britain did get frictionless trade and net EEA migration fell to zero, the economy would shrink by 2.5 per cent.

But many believe Britain will not get everything it wants, and the analysis models a trade arrangement halfway between frictionless trade and a standard free trade agreement.

This compromise model with no change to migration would see the economy shrink by 2.1 per cent. With zero net migration, it would shrink by 3.9 per cent.

The document makes clear the paper is not an economic forecast for the , adding that the results “should be interpreted with caution”.

The models also do not take into account changes such as demography or productivity levels, or any changes to EU rules in future.

They do however assume Britain rolls over the trade deals it currently benefits from as part of the EU, and strikes new ones with countries including the United States.

But the impact of these trade deals is negligible — and increase of between 0.1 and 0.2 per cent in GDP compared to today‘s arrangements.
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