There have been many analyses of the economic effects of Brexit, both before the referendum and at various times since, including analyses of the effects of the deal negotiated by Theresa May’s government and the EU. But with the prospect of a no-deal Brexit on 31 October under the new Boris Johnson government, attention has turned to the effects of leaving the EU without a deal.
There have been two major analyses recently of the likely effects of a no-deal Brexit – one by the International Monetary Fund (IMF) and one by the Office for Budget Responsibility (OBR).
IMF analysis
The first was in April by the IMF as part of its 6-monthly World Economic Outlook. In Scenario Box 1.1. ‘A No-Deal Brexit’ on page 28 of Chapter 1, the IMF looked at two possible scenarios.
Scenario A assumes no border disruptions and a relatively small increase in UK sovereign and corporate spreads. Scenario B incorporates significant border disruptions that increase import costs for UK firms and households (and to a lesser extent for the European Union) and a more severe tightening in financial conditions.
Under both scenarios, UK exports to the EU and UK imports from the EU revert to WTO rules. As a result, tariffs are imposed by mid-2020 or earlier. Non-tariff barriers rise at first but are gradually reduced over time. Most free-trade arrangements between the EU and other countries are initially unavailable to the UK (see the blog EU strikes major trade deals) but both scenarios assume that ‘new trade agreements are secured after two years, and on terms similar to those currently in place.’
Both scenarios also assume a reduction in net immigration from the EU of 25 000 per year until 2030. Both assume a rise in corporate and government bond rates, reflecting greater uncertainty, with the effect being greater in Scenario B. Both assume a relaxing of monetary and fiscal policy in response to downward pressures on the economy.
The IMF analysis shows a negative impact on UK GDP, with the economy falling into recession in late 2019 and in 2020. This is the result of higher trade costs and reduced business investment caused by a poorer economic outlook and increased uncertainty. By 2021, even under Scenario A, GDP is approximately 3.5% lower than it would have been if the UK had left the EU with the negotiated deal. For the rest of the EU, GDP is around 0.5% lower, although the effect varies considerably from country to country.
The IMF analysis makes optimistic assumptions, such as the UK being able to negotiate new trade deals with non-EU countries to replace those lost by leaving. More pessimistic assumptions would lead to greater costs.
OBR analysis
Building on the analysis of the IMF, the Office for Budget Responsibility considered the effect of a no-deal Brexit on the public finances in its biennial Fiscal risks report, published on 17 July 2019. This argues that, under the relatively benign Scenario A assumptions of the IMF, the lower GDP would result in annual public-sector net borrowing (PSNB) rising. By 2021/22, if the UK had left with the deal negotiated with the EU, PSNB would have been around £18bn. A no-deal Brexit would push this up to around £51bn.
According to the OBR, the contributors to this rise in public-sector net borrowing of around £33bn are:
- A fall in income tax and national insurance receipts of around £16.5bn per year because of lower incomes.
- A fall in corporation tax and expenditure taxes, such as VAT, excise duties and stamp duty of around £22.5bn per year because of lower expenditure.
- A fall in capital taxes, such as inheritance tax and capital gains tax of around £10bn per year because of a fall in asset prices.
- These are offset to a small degree by a rise in customs duties (around £10bn) because of the imposition of tariffs and by lower debt repayments (of around £6bn) because of the Bank of England having to reduce interest rates.
The rise in PSNB would constrain the government’s ability to use fiscal policy to boost the economy and to engage in the large-scale capital projects advocated by Boris Johnson while making the substantial tax cuts he is proposing. A less optimistic set of assumptions would, of course, lead to a bigger rise in PSNB, which would further constrain fiscal policy.
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Questions
- What are the assumptions of the IMF World Economic Outlook forecasts for the effects of a no-deal Brexit? Do you agree with these assumptions? Explain.
- What are the assumptions of the analysis of a no-deal Brexit on the public finances in the OBR’s Fiscal risks report? Do you agree with these assumptions? Explain.
- What is the difference between forecasts and analyses of outcomes?
- For what reasons might growth over the next few years be higher than in the IMF forecasts under either scenario?
- For what reasons might growth over the next few years be lower than in the IMF forecasts under either scenario?
- For what reasons might public-sector net borrowing (PSNB) over the next few years be lower than in the OBR forecast?
- For what reasons might PSNB over the next few years be higher than in the OBR forecast?
One of the key questions about Brexit is its effect on UK trade and cross-border investment. Once outside the customs union, will the freedom to negotiate trade deals lead to an increase in UK exports and GDP, as many who support Brexit claim; or will the increased frictions in trade with the EU, and the need to negotiate new trade deals with those non-EU countries which already have trade deals with the EU, lead to a fall in exports and in GDP?
Also, how will trade restrictions or new trade deals affect capital flows? Will there be an increase in inward investment or a flight of investment to the EU or elsewhere? Will many companies relocate away from the UK – or to it?
Although there has been a cost up to now from the Brexit vote, in terms of a depreciation in sterling and a fall in inward investment (see the first article below), the future effects have been hard to predict as the terms on which the UK will leave the EU have been unclear. However, with a draft withdrawal agreement between the EU and the UK government having been reached, the costs and benefits are becoming clearer. But there is still uncertainty about just what the effects on trade and investment will be.
- First, the 585-page draft withdrawal agreement is not a trade deal. It contains details of UK payments to the EU, commitments on the rights of EU and UK citizens and confirmation of the transition period – initially until 31 December 2020, but possibly extended with mutual agreement. During the transition agreement, the UK would remain a member of the customs union and single market and remain subject to rulings of the European Court of Justice. The withdrawal agreement also provides for a continuation of the customs union beyond the transition period, if no long-term trade agreement is in place. This is to prevent he need for a hard border between Ireland and Northern Ireland.
- Second, there is merely a 26-page ‘political declaration‘ about future trade relations. Negotiations on the details of these can only begin once the UK has left the EU, scheduled for 29 March 2019. So it’s still unclear about just how free trade in both goods and services will be between the UK and the EU and how freely capital and labour will move between them. But with the UK outside the single market, there will be some limitations on trade and factor movements – some frictions.
- Third, it is not clear whether the UK Parliament will agree to the withdrawal agreement. Currently, it seems as if a majority of MPs is in favour of rejecting it. If this happens, will the UK leave without an agreement, with trade based on WTO terms? Or will the EU be prepared to renegotiate it – something it currently says it will not do? Or will the issue be put back to the electorate in the form of a People’s vote (see also), which might contain the option of seeking to remain in the EU?
So, without knowing just what the UK’s future trade relations will be with (a) the EU, (b) non-EU countries which have negotiated trade deals with the EU, (c) other countries without trade deals with the EU, it is impossible to quantify the costs and benefits from the effects on trade and investment. However, the consensus among economists is still that there will be a net cost in terms of lost trade and inward investment.
Such as view is backed by a government analysis of various Brexit scenarios, released in time for the House of Commons vote on 11 December. This concludes that the UK will be worse off under all Brexit alternatives compared with staying in the EU. The main brake on growth will be frictions in trade from tariff and non-tariff barriers.
This analysis was supported by a Bank of England paper which modelled various scenarios based on assumptions about different types of Brexit deal. While recognising the inherent uncertainty in some of the empirical relationships, it still concluded that Brexit would be likely to have a net negative effect. The size of this negative effect would depend on the closeness of the new relationship between the UK and EU, the degree of preparedness across firms and critical infrastructure, and how other policies respond.
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Questions
- Identify the main economic advantages and disadvantages for the UK from leaving the EU?
- How does the law of comparative advantage relate to the question of the relative trade gains from leaving and remaining in the EU?
- What is the difference between the following models of relationship with the EU: the Switzerland model; the Norway model; the Turkey model; the Canada (plus or plus, plus) model; trading on WTO terms?
- Why is the consensus among economists that there will be a net economic cost from leaving the EU, no matter on what terms?
- Is the UK likely to achieve more favourable trade deals with non-EU countries as an independent country or as a member of the EU benefiting from EU-negotiated trade deals with such countries?
Donald Trump has threatened to pull out of the World Trade Organization. ‘If they don’t shape up, I would withdraw from the WTO,’ he said. He argues that the USA is being treated very badly by the WTO and that the organisation needs to ‘change its ways’.
Historically, the USA has done relatively well compared with other countries in trade disputes brought to the WTO. However, President Trump does not like being bound by an international organisation which prohibits the unilateral imposition of tariffs that are not in direct retaliation against a trade violation by other countries. Such tariffs have been imposed by the Trump administration on steel and aluminium imports. This has led to retaliatory tariffs on US imports by the EU, China and Canada – something that is permitted under WTO rules.
Whether or not the USA does withdraw from the WTO, Trump’s threats bring into question the power of the WTO and other countries’ compliance with WTO rules. With the rise in protectionist sentiments around the world, the power of the WTO would seem to be on the wane.
Even if the USA does not withdraw from the WTO, it is succeeding in weakening the organisation. Appeals cases have to be heard by an ‘appellate body’, consisting of at least three judges drawn from a list of seven, each elected for four years. But the USA has the power to block new appointees – and has done so. As Larry Elliott states in the first article below:
The list of judges is already down to four and will be down to the minimum of three when the Mauritian member, Shree Baboo Chekitan Servansing, retires at the end of September. Two more members will go by the end of next year, at which point the appeals process will come to a halt.
This raises the question of the implication of a ‘no-deal’ Brexit – something that seems more likely as the UK struggles to reach a trade agreement with the EU. Leaving without a deal would mean ‘reverting to WTO rules’. But if these rules are being ignored by powerful countries such as the USA and possibly China, and if the appeals procedure has ground to a halt, this could leave the UK without the safety net of international trade rules. Outside the EU – the world’s most powerful trade bloc – the UK could find itself having to accept poor trade terms with the USA and other large countries.
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- Explain the WTO’s ‘Most-favoured-nation (MFN)’ clause. How would this affect trade deals between the UK and the EU?
- Would the trade deals that the EU has negotiated with other countries, such as Japan, be available to the UK after leaving the EU?
- Demonstrate how, according to the law of comparative advantage, all countries can gain from trade.
- In what ways is the USA likely to gain and lose from the imposition of tariffs on steel and aluminium?
- How could a country that supports free trade ever support the imposition of tariffs?
- Why are tariffs not the most serious restriction on trade?
With the Conservatives having lost their majority in Parliament in the recent UK election, there is renewed discussion of the form that Brexit might take. EU states are members of the single market and the customs union. A ‘hard Brexit’ involves leaving both and this was the government’s stance prior to the election. But there is now talk of a softer Brexit, which might mean retaining membership of the single market and/or customs union.
The single market
Belonging to the single market means accepting the free movement of goods, services, capital and labour. It also involves tariff-free trade within the single market and adopting a common set of rules and regulations over trade, product standards, safety, packaging, etc., with disputes settled by the European Court of Justice. Membership of the single market involves paying budgetary contributions. Norway and Iceland are members of the single market.
The single market brings huge benefits from free trade with no administrative barriers from customs checks and paperwork. But it would probably prove impossible to negotiate remaining in the single market with an opt out on free movement of labour. Controlling immigration from EU countries was a key part of the Leave campaign.
The customs union
This involves all EU countries adopting the same tariffs (customs duties) on imports from outside the EU. These tariffs are negotiated by the European Commission with non-EU countries 
on a country-by-country basis. Goods imported from outside the EU are charged tariffs in the country of import and can then be sold freely around the EU with no further tariffs.
Remaining a member of the customs union would allow the UK to continue trading freely in the EU, subject to meeting various non-tariff regulations. It would also allow free ‘borderless’ trade between Northern Ireland and the Republic of Ireland. However, being a member of the customs union would prevent the UK from negotiating separate trade deals with non-EU countries. The ability to negotiate such deals has been argued to be one of the main benefits of leaving the EU.
Free(r) trade area
The UK could negotiate a trade deal with the EU. But it is highly unlikely that such a deal could be in place by March 2019, the date when the UK is scheduled to leave the EU. At that point, trade barriers would be imposed, including between the two parts of the island of Ireland. Such deals are very complex, especially in the area of services, which are the largest category of UK exports. Negotiating tariff-free or reduced-tariff trade is only a small part of the problem; the biggest part involves negotiating product standards, regulations and other non-tariff barriers.
All the above options thus involve serious problems and the government will be pushed from various sides, not least within the Conservative Party, for different degrees of ‘softness’ or ‘hardness’ of Brexit. What is more, the pressure from business for free trade with the EU is likely to grow. Brexit may mean Brexit, but just what form it will take is very unclear.
Articles
Free trade area, single market, customs union – what’s the difference? BBC News, Jonty Bloom (12/6/17)
Brexit: What are the options? BBC News (12/6/17)
After the election, the real test: Brexi The Economist (8/6/17)
May’s Ministers Plot Softer Brexit to Keep UK in Single Market Bloomberg, Tim Ross, Alex Morales and Svenja O’Donnell (11/6/17)
UK’s Hung Parliament Raises Business Hopes for a Softer Brexit Bloomberg, Stephanie Baker and James Paton (12/6/17)
Do not exaggerate the effect the election will have on Brexit Financial Times, Wolfgang Münchau (11/6/17)
What is soft Brexit? How could it work as UK negotiates leaving the EU? Independent, May Bulman (12/6/17)
Brexit-lite back on the table as Britain rethinks its options after election The Guardian, Dan Roberts (11/6/17)
Review plan to quit EU Customs Union, urges FTA FoodManufacture.co.uk, James Ridler (12/6/17)
Freight leaders urge government to review decision to leave EU customs union RTM (12/6/17)
Paper
Making Brexit work for British Business: Key Execution Priorities M-RCBG Associate Working Paper No. 77, Harvard Kennedy School, Peter Sands, Ed Balls, Sebastian Leape and Nyasha Weinberg (June 2017)
Questions
- Explain the trading agreement between Norway and the EU.
- How does the Norwegian arrangement with the EU differ from the Turkish one?
- What are meant by the terms ‘hard Brexit’ and ‘soft Brexit’?
- How does a customs union differ from a free trade area?
- Is it possible to have (a) a customs union without a single market; (b) a single market without a customs union?
- To what extent is it in the EU’s interests to negotiate a deal with the UK which lets it maintain access to the customs union without having free movement of labour?
- The EU insists that talks about future trading arrangements between the UK and the EU can take place only after sufficient progress has been made on the terms of the ‘divorce’. What elements are included in the divorce terms?
- If agreement is not reached by 29 March 2019, what happens and what would be the consequences?
- Will a hung parliament, or at least a government supported by the DUP on a confidence and supply basis, make it more or less likely that there will be a hard Brexit?
- For what reasons may the EU favour (a) a hard Brexit; (b) a soft Brexit?
Theresa May has said that the UK will quit the EU single market and seek to negotiate new trade deals, both with the EU and with other countries. As she said, “What I am proposing cannot mean membership of the single market.” It would also mean leaving the customs union, which sets common external tariffs for goods imported into the EU.
The single market guarantees free movement of goods, services, labour and capital between EU members. There are no internal tariffs and common rules and regulations concerning products, production and trade. By leaving the single market, the UK will be able to restrict immigration from EU countries, as it is currently allowed to do from non-EU countries.
A customs union is a free trade area with common external tariffs and uniform methods of handling imports. There are also no, or only minimal, checks and other bureaucracies at borders between members. The EU customs union means that individual EU countries are not permitted to do separate trade deals with non-EU countries.
Once the UK has left the EU, probably in around two years’ time, it will then be able to have different trade arrangements from the EU with countries outside the EU. Leaving the customs union would mean that the UK would face the EU’s common external tariff or around 5% on most goods, and 10% on cars.
Leaving the EU single market and customs union has been dubbed ‘hard Brexit’. Most businesses and many politicians had hoped that elements of the single market could be retained, such as tariff-free trade between the UK and the EU and free movement of capital. However, by leaving the single market, access to it will depend on the outcome of negotiations.
Negotiations will take place once Article 50 – the formal notice of leaving – has been invoked. The government has said that it will do this by the end of March this year. Then, under EU legislation, there will be up to two years of negotiations, at which point the UK will leave the EU.
The articles look at the nature of the EU single market and customs union and at the implications for the UK of leaving them.
Articles
Britain to leave EU market as May sets ‘hard Brexit’ course Reuters, Kylie MacLellan and William James (17/1/17)
Brexit: UK to leave single market, says Theresa May BBC News (17/1/17)
How Does U.K. Want to Trade With EU Post-Brexit?: QuickTake Q&A Bloomberg, Simon Kennedy (17/1/17)
Brexit at-a-glance: What we learned from Theresa May BBC News, Tom Moseley (17/1/17)
Theresa May unveils plan to quit EU single market under Brexit Financial Times, Henry Mance (17/1/17)
Doing Brexit the hard way The Economist (21/1/17)
Theresa May confirms it’ll be a hard Brexit – here’s what that means for trade The Conversation, Billy Melo Araujo (17/1/17)
How to read Theresa May’s Brexit speech The Conversation, Paul James Cardwell (17/1/17)
Theresa May’s hard Brexit hinges on a dated vision of global trade The Conversation, Martin Smith (17/1/17)
Brexit: What is the EU customs union and why should people care that the UK is leaving it? Independent, Ben Chapman (17/1/17)
Questions
- Explain the difference between a free-trade area, a customs union, a common market and a single market.
- What arrangement does Norway have with the EU?
- How would the UK’s future relationship with the EU differ from Norway’s?
- Distinguish between trade creation and trade diversion from joining a customs union. Who loses from trade diversion?
- Will leaving the EU mean that trade which was diverted can be reversed?
- What will determine the net benefits from new trade arrangements compared with the current situation of membership of the EU?
- What are the possible implications of hard Brexit for (a) inward investment and (b) companies currently in the UK of relocating to other parts of the EU? Why is the magnitude of such effects extremely hard to predict?
- Explain what is meant by ‘passporting rights’ for financial services firms. Why are they unlikely still to have such rights after Brexit?
- Discuss the argument put forward in The Conversation article that ‘Theresa May’s hard Brexit hinges on a dated vision of global trade’.
No-deal Brexit would plunge UK into recession, OBR watchdog warns
