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Before addressing five of the specific questions posed by the Committee, here are some general observations about the political and economic context in which this debate is taking place. The UK government has made several arguments in favour of closer economic ties with the EU – including dynamic alignment – but none of these are compelling.
One is geopolitical. The growing security threats from China and Russia and the strained relationship with the United States have strengthened the case for cooperating more closely with allies in the rest of Europe. But this is essentially about security and defence cooperation, which has not been affected by the UK’s departure from the EU. In particular, “Brexit Britain” has been a leader in the support for Ukraine. Similarly, closer security and defence cooperation with friendly non-EU countries – notably Canada, Australia, and New Zealand – does not depend on closer economic ties with these countries, even though closer economic ties may be one result.
The UK government has also argued that closer economic ties with the EU are popular at home. Opinion polls do suggest that a majority of UK voters now support rejoining the EU outright. But this evidence needs to be heavily caveated. For a start, even these polls show that only a minority of the public “strongly support” rejoining the EU or consider this to be a priority. Support for the UK government’s current approach – having a closer relationship with the EU, without rejoining the EU, the Single Market, or the Customs Union – is also shallow. For example:
- One recent poll (by YouGov) found that only 19% of respondents were “strongly in favour” of the government’s current approach
- Another poll (by More in Common) found that most people are keen that the UK and EU should be able to trade more freely with each other (why would you not be?). However, only a minority actually want to align more closely with EU laws and regulations, which is the offer now
This is consistent with the evidence from many business surveys, which show that Brexit has fallen well down the list of challenges facing UK companies. For example:
- The Bank of England’s “Brexit Uncertainty Index” had already fallen sharply between 2019 and 2023 and has remained low since then. The initial drag on business investment has therefore eased substantially (and, as I discuss later, the messy UK-EU reset could actually increase uncertainty again)
- The latest Deloitte survey suggests that CFOs are now more worried about “economic weakness in the euro area and the possibility of a renewed euro crisis” than they are about the “effects of Brexit or a deterioration in UK-EU relations”. The euro area in particular is widely seen as a failing economic bloc and the EU as a whole suffers from excessive regulation
Most findings from public opinion polls on Brexit should come with two additional health warnings. The first is that the political and economic trade-offs are rarely made clear.
To illustrate this point, YouGov polling suggests that 80% of Labour voters want a “customs union” with the EU. However, more sophisticated polling by the same company (for Queen Mary University London) has found that only 9% of Labour voters think UK tariff policy should be decided by someone other than the UK government. This is, of course, exactly what a customs union with the EU would entail.
The second reason to be wary of the polls is that public opinion has been swayed by a relentless barrage of negative commentary on the economic harm (allegedly) caused by Brexit. This process started in the run up to the 2016 referendum itself, when the Treasury predicted an immediate recession and a surge in unemployment if the UK voted to leave the EU. These shocks failed to materialise. Since then, many negative statistics have been given far more weight than they deserve. Here are just some examples:
- The OBR initially made the “working assumption” that Brexit would reduce long-run productivity (specifically, GDP per head) by 4% relative to remaining in the EU. However, the 4% was simply an average of the results of 13 external studies, rather than original work by the OBR. These studies, all done before the final shape of the exit agreement was known, used a variety of different models and assumptions, most of which now look far too pessimistic
- The OBR also assumed that both exports and imports will be 15% lower in the long run than if the UK had remained in the EU. This figure covered total trade in goods and services with the entire world. A shock of this magnitude had always looked implausibly large, and it has indeed failed to materialise
- More recently, the Chancellor has drawn attention to an NBER working paper which claimed that Brexit has already reduced UK GDP by “as much as 8%”. This figure was derived by comparing growth in UK GDP per capita with the averages of a wide range of other countries with many different characteristics. Any UK underperformance since 2016 was then attributed solely to Brexit, ignoring other factors (notably Covid and the energy crisis) which have impacted different economies in different ways over this period. In reality, growth in UK GDP per capita has been only a little below that of France and better than that of both Germany and Canada. If the UK economy had grown by another 8% since 2016 it would not have been far behind that of the US, even though the US has benefited from a large fiscal stimulus, relatively low energy costs, and the AI boom.
The upshot is the changing geopolitical backdrop and the apparent shift in public opinion on Brexit are not good reasons to seek to realign the UK economy more closely with the EU.